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SIGNATURE SERIES

THE BEST EXTENDED INTERVAL DRAIN MOTOR OIL WITH GUARANTEED PROTECTION UP TO 25,000 MILES OR 1 YEAR

SIGNATURE SERIES

AMSOIL Signature Series 0W16

PRODUCT CODES: AZSQT-EA, AZSQT-CA 

Discover the unparalleled advantages of AMSOIL 0W16, a premium synthetic motor oil crafted for the high demands of modern engines. When considering your next switch to full synthetic oil, ponder these essential benefits:

  • Outstanding Protection Against Wear: Engine wear is significantly diminished thanks to the sophisticated formulation of this oil, ensuring your engine's longevity and maintaining its peak performance over time.

  • Optimal Performance in Cold Weather: With its 0W16 viscosity rating, AMSOIL ensures rapid, smooth start-ups and effective lubrication, even in the coldest conditions.

  • Improved Fuel Efficiency: The Signature Series 0W16 enhances your engine's efficiency, potentially leading to fuel savings while still delivering the power you expect.

  • Longer Between Oil Changes: This synthetic 0W16 oil allows for extended oil change intervals, offering both convenience and cost-effectiveness without sacrificing engine protection. Great for a DIY oil change project or take it to an oil change services provider.

  • Superb Engine Cleanliness: Engine performance is optimized and its lifespan extended, thanks to a superior additive package that effectively reduces sludge and deposits.

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 0W20

PRODUCT CODES: ASMQT-EA, ASMQT-CA, ASM1G-EA, ASM1G-CA, ASM55-EA

​Experience the exceptional benefits of AMSOIL 0W20, a top-tier synthetic motor oil designed to meet the demands of today's high-performance engines. Key benefits to think about at your next full synthetic oil change include:

  • Unrivaled Wear Protection: This oil's advanced formula significantly reduces engine wear, ensuring longevity and consistent peak performance.

  • Superior Cold-Weather Performance: The AMSOIL 0W20 viscosity grade ensures quick, easy start-ups and efficient lubrication even in frigid temperatures.

  • Enhanced Fuel Economy: Signature Series 0W20 optimizes engine efficiency, providing potential fuel savings without sacrificing power.

  • Extended Drain Intervals: Enjoy the convenience and cost savings of longer oil change intervals with this 0W20 synthetic oil, without compromising engine protection.

  • Exceptional Cleanliness: The advanced additive package minimizes sludge and deposits, maintaining optimal engine performance and extending its life.

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 0W30

PRODUCT CODES: AZOQT-EA, AZOQT-CA, AZO1G-EA, AZO1G-CA, AZO55-EA, AZO27-EA

​Discover the outstanding advantages of AMSOIL 0W30, a high-performance synthetic motor oil tailored for modern engines and challenging conditions. Key benefits to review for you next synthetic motor oil change are:

  • Ultimate Wear Protection: This company's cutting-edge formula minimizes engine wear, ensuring long-lasting performance and durability.

  • Exceptional Cold-Weather Performance: The 0W30 viscosity grade guarantees rapid, reliable start-ups and efficient lubrication in extreme cold conditions.

  • Improved Fuel Efficiency: This motor oil enhances engine efficiency, potentially reducing fuel consumption without compromising power.

  • Extended Oil Change Intervals: Experience the ease and cost savings of longer drain intervals while maintaining exceptional engine protection.

  • Unparalleled Engine Cleanliness: The advanced additive technology prevents sludge and deposit formation, promoting optimal engine performance and extending its lifespan.

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 0W40

PRODUCT CODES: AZFQT-EA, AZFQT-CA, AZF55-EA

AMSOIL Signature Series 0W40 stands out as an exceptional synthetic motor oil, expertly engineered for modern engines and demanding conditions. Its ultimate wear protection ensures lasting performance and durability, while the 0W40 viscosity grade guarantees rapid start-ups and efficient lubrication even in extreme cold temperatures. This advanced formula enhances engine efficiency, potentially reducing fuel consumption without sacrificing power. This oil's extended oil change intervals offer convenience and cost savings, maintaining exceptional engine protection throughout and keeping engine parts clean including cylinder heads, pistons, crankshafts and other important components. The unparalleled engine cleanliness provided by its advanced additive technology prevents sludge and deposit formation, promoting optimal performance and extending your engine's lifespan. This oil is the rival of the Mobil 1 Supercar 0W40, and is an excellent oil for supercar's, hypercars and the hybrid supercar in addition to the everyday driver. Experience the AMSOIL 0W40 Signature Series difference today. Key benefits to consider for your next service oil change are:

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 5W20

PRODUCT CODES: ALMQT-EA, ALMQT-CA, ALM1G-EA, ALM1G-CA, ALM55-EA, ALM27-EA

The AMSOIL Signature Series 5W20 viscosity excels as a premium synthetic motor oil, perfectly engineered for modern engines like the popular Ford F-150. Its advanced wear protection ensures long-lasting performance and durability, while the AMSOIL 5W20 oil viscosity grade offers rapid start-ups and efficient lubrication in various temperatures. The innovative formula enhances engine efficiency, potentially reducing fuel consumption without compromising power, making it an ideal choice for the best selling truck in America, the F-150. The extended oil change intervals provide convenience and cost savings, maintaining outstanding engine protection to key engine parts including the cylinder head, crankcase, pistons and valves. The superior engine cleanliness achieved with its cutting-edge additive technology prevents sludge and deposit formation, ensuring optimal performance and an extended engine lifespan. This high quality motor oil can even help with positive crankcase ventilation. Experience the AMSOIL 5W20 Signature Series 100% synthetic oil advantage today and save money on the price for oil change. Key benefits to keep in mind for your next synthetic oil change project and are:

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 5W30

PRODUCT CODES: ASLQT-EA, ASLQT-CA, ASL1G-EA, ASL1G-CA, ASL55-EA, ASL27-EA

​Discover the exceptional qualities of AMSOIL Signature Series 5W30, a top-of-the-line synthetic motor oil designed for modern naturally aspirated engines and demanding driving conditions. AMSOIL 5W30 synthetic oil is a highly popular motor oil due to its outstanding performance, versatility, and compatibility with a wide range of vehicle makes and models. It meets or exceeds the stringent requirements set by leading engine manufacturers, ensuring reliable protection under various driving conditions. The advanced synthetic formulation of this 5W30 oil allows for improved fuel economy, lower emissions and extended drain intervals, providing vehicle owners with the best possible value and convenience. Its exceptional engine cleanliness, along with its ability to protect against wear, oxidation, and thermal breakdown, helping with positive crankcase ventilation and making this SAE 30 oil the go-to choice for drivers who demand the highest level of engine protection and performance. Experience the difference and see why it remains the most popular motor oil choice for countless drivers.​ Key benefits for your next oil change to full synthetic project include:

  • Exhibits 50% superior cleaning capacity compared to AM SOIL OE Motor Oil.

  • Reliable and favored by professional engine builders.

  • Delivers guaranteed protection for a duration or distance of up to 25,000 miles or 1 year.

    • (Note 1) Offers engine protection that is 75% more effective against horsepower loss and wear, as indicated by independent testing of AMSOIL Signature Series 0W-20 following the ASTM D6891 procedure required by the API SN specification.

    • (Note 2) Exceeds GM dexos1 Gen 2 specification requirements by providing 72% better protection for turbochargers, backed by independent testing of AM SOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Outperforms Mobil 1 with 28% more acid-neutralizing power, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. These oils were purchased in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 10W30

PRODUCT CODES: ATMQT-EA, ATMQT-CA, ATM1G-EA, ATM1G-CA, ATM55-EA, ATM27-EA

This AMSOIL Signature Series 10W30 stands out as an exceptional engine oil, meticulously engineered for modern engines and demanding driving conditions. Its advanced wear protection ensures lasting performance and durability, while the Signature Series 10W30 viscosity grade delivers efficient start-ups and lubrication in various temperatures. The innovative formula enhances engine efficiency, potentially reducing fuel consumption without sacrificing power. This motor oil line's extended oil change intervals offer convenience and cost savings, maintaining outstanding engine protection. The superior engine cleanliness provided by its cutting-edge additive technology prevents sludge and deposit formation in key engine parts such as the crankcase, cylinder head, pistons and valves amongst other components, promoting optimal performance and extending your engine's lifespan. Experience the remarkable benefits of Signature Series 100% synthetic 10W30 oil today. Key benefits to take into account for your next engine oil and filter change are:

  • Demonstrates 50% enhanced cleaning capabilities in comparison to AM SOIL OE Motor Oil.

  • Endorsed by professional engine builders for reliability.

  • Ensures protection for a maximum of 25,000 miles or 1 year.

    • (Note 1) Provides 75% superior engine protection against horsepower reduction and wear, as validated by independent testing of AM SOIL Signature Series 0W-20 in the ASTM D6891 test demanded by the API SN specification.

    • (Note 2) Secures turbochargers 72% more efficiently than necessitated by the GM dexos1 Gen 2 specification, according to independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Delivers 28% heightened acid-neutralizing potential compared to Mobil 1, as evidenced by independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in the ASTM D2896. These oils were acquired in July 2020.

SIGNATURE SERIES

AMSOIL Signature Series 5W50

PRODUCT CODES: AMRQT-EA, AMRQT-CA, AMR55-EA

 

The AMSOIL Signature Series 5W50 motor oil is  skillfully crafted for high-performance naturally aspirated engines and demanding driving conditions. Its superior wear protection ensures enduring performance and durability, while this versatile 5W50 synthetic motor oil grade enables quick start-ups and efficient lubrication across a wide temperature range. The advanced formula boosts engine efficiency, potentially lowering fuel consumption without sacrificing power. The extended oil change intervals provide convenience and cost savings when doing a service oil change, maintaining exceptional engine protection throughout. The unparalleled engine cleanliness achieved with its state-of-the-art additive technology prevents sludge and deposit formation, ensuring optimal performance and an extended engine lifespan. Trust in Signature Series 5W50 for your ultimate engine oil care and maintenance for cars such as the Shelby GT 500, Range Rover, Focus RS and other high performance motor vehicles. Key benefits for your next oil change project are:

  • Demonstrates a cleaning capacity that's 50% superior to AMSOIL OE Motor Oil.

  • Receives the trust of professional engine builders and car tuning near me motor mechanics.

  • Guarantees protection for up to 25,000 miles or 1 year.

    • (Note 1) Ensures 75% enhanced engine defense against loss of horsepower and wear, supported by independent testing of AMSOIL Signature Series 0W-20 as per ASTM D6891, required by the API SN specification.

    • (Note 2) Offers protection for turbochargers that is 72% more effective than the GM dexos1 Gen 2 specification demands, confirmed by independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.

    • (Note 3) Exhibits 28% greater acid-neutralizing capacity than Mobil 1, based on independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AM SOIL Signature Series 5W-30 under ASTM D2896. The oils were bought in July 2020.

KEY HIGHLIGHTS

  • Offers 75% more engine protection against horsepower loss and wear, based on ASTM D6891 standard testing of AMSOIL Signature Series 0W-20.

  • Provides 50% more cleaning power compared to AMSOIL OE Motor Oil.

  • Ensures 72% better protection for turbochargers than the GM dexos1 Gen 2 specification requires, as shown by tests on AMSOIL Signature Series 5W-30.

  • Delivers 28% more acid-neutralizing power than Mobil 1, based on testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 using the ASTM D2896 test.

  • Recommended by professional engine builders.

  • Offers guaranteed engine protection for up to 25,000 miles or one year.

GET AMSOIL TODAY AND MAXIMIZE YOUR VEHICLE'S PERFORMANCE AND PROTECTION

ABOUT SIGNATURE SERIES

AMSOIL Signature Series 5W30

The Signature Series 100% synthetic line up is designed for car and truck enthusiasts as well as  everyday owners looking for the best performance and protection for their vehicle. It has a remarkable fluid film and anti-wear additives to ensure minimal metal contact, such as with the crankshaft, cylinder head and pistons, thereby reducing engine wear, contributing to the longevity of engine life and increased mileage, especially when this is paired with AMSOIL oil filters. The end result of this dedication is excellent engine performance, protection and cleanliness that surpasses even the highest industry benchmarks; in addition to being fuel efficient and environmentally friendly with less oil waste! Additionally, this synthetic engine oil (aka. syn oil) is compatible for hybrid cars and hybrid SUV's, considering its benefits like extended drain intervals - which has been a common practice in Europe for many years!

 

This engine oil is used by numerous fleet mechanics and is an excellent choice for daily driver cars and trucks, like the Subaru Outback, Dodge Charger and Chevy S10 pickup truck. It is also great for supercar or hypercar vehicles, such as the Aston Martin Valkyrie, Ferrari 812 GTS and the Nissan Z sports car. One particular oil viscosity is the the AMSOIL 5W20 Signature Series, which is extremely popular with Ford F150 owners. You won't find this AMSOIL oil product at Walmart or other big box stores as it is only available through an Independent AMSOIL Dealer, like us at HIGHGRADE Lubricants! It is competitively priced with other motor oil brands such as Pennzoil Platinum, Mobil 1 Supercar 0W40 and Royal Purple Company to name a few; as well as it's closest rival the Pennzoil Ultra Platinum. When searching for what is the best oil for my car is, look no further than Signature Series. Considered by many as the best synthetic oil on the market today! When used with fuel additives such as AMSOIL PI, the performance rewards are even greater.

Known as one of the best synthetic motor oil brands in the synthetic oil industry, AMSOIL Inc's product development and advanced technology, culminated in the Signature Series motor oil - which is their top of the line product! It outperforms any competitor motor oil ever tested, with a drain interval of up to 25,000 miles (40,000 km) under normal service conditions. Not everyone will enjoy its benefits, but it will provide the very best engine protection and performance for those who demand it; like the everyday driver to Nascar racers, Indycar 500, F1 racers and other race car competition drivers! It is also highly desired by those who want the very best for their daily driver and for vehicle fleets which look to save money on the price for oil change and maintenance, ensuring longevity of engine life! It is even considered a recommended oil by many engine builders and "car tuning near me" mechanics. The most popular oil viscosity is AMSOIL 5W30! This product lineup provides the best in synthetic motor oil protection for naturally aspirated engines. Just as the Hennessy Venom F5 has pushed the limits of vehicle performance, so has this 100% synthetic motor oil! Become an AMSOIL Preferred Customer and get up to 25% off on your order! Great for a DIY oil change project or take it to an oil change services provider.

AMSOIL Blue Corvette on Highway

PRODUCT BENEFITS

PROTECTS ENGINE FROM WEAR & HORSEPOWER LOSS!

This 100% synthetic motor oil, also referred to as syn oil, is meticulously engineered to provide superior engine protection against wear. Its advanced formula contains a unique blend of high-performance additives and premium base oils that form a robust film barrier, minimizing metal-to-metal contact. This reduces friction and heat generation, leading to a significant decrease in component wear. It is considered by many as the best motor oil for vehicles! When you do an AMSOIL look up on your vehicle, including hybrid electric vehicles, you will most likely find Signature Series due to it's popularity!

 

Furthermore, this company's technology keeps the exceptional thermal stability of the oil which ensures consistent performance even under extreme operating conditions, maintaining its viscosity and protecting moving parts. By safeguarding your engine against wear, this oil helps extend lifespan, ensuring smooth and reliable operation. The more popular viscosities include 0W20, 5W20, 5W50, and the extremely popular AMSOIL Signature Series 5W30 to name a few. This product line is considered by a number of mechanics as the best engine oil out there, and used in numerous pickup trucks, all the way to the R34 and the Dodge Hellcat! Teaming this up with AMSOIL oil filters will provide you the best in synthetic motor oil protection available on the market.

THE OIL ENGINE BUILDERS TRUST

Signature Series motor oil has earned the trust of the professional engine builder community due to its exceptional performance, quality, and reliability. The advanced synthetic formulation delivers unmatched wear protection, ensuring the longevity and consistent peak performance of even the most demanding engines. Its superior thermal stability and resistance to oxidation enable it to maintain its protective and lubricating properties even under extreme heat and stress, making it an ideal choice for high-performance and race engines. This oil surpasses some of the best full synthetic motor oil out there, considering AM SOIL is 100% synthetic and is put through rigorous testing! It is competitively priced with popular brands like Schaeffer oil and Total oil and gas (aka. Total Energies)

The cutting-edge additive technology used in this oil helps keep engines clean by minimizing sludge and deposit formation, which is critical in maintaining optimal engine performance and efficiency. Furthermore, the excellent shear stability and aeration control of this motor oil guarantee consistent protection and lubrication for vital engine components. The extended drain intervals offered by this line of oil, provide not only cost savings but also reduced downtime, which is highly valued by the professional engine builder world and Nascar racers alike. By choosing Signature Series, engine builders can have confidence in the product's ability to safeguard their meticulously crafted engines and ensure the best possible performance on the road or track. This trust in the Signature Series line is a testament to the exceptional quality and performance it consistently delivers, making it a top choice for professionals and enthusiasts alike. Add on AMSOIL Performance Improver for even more horsepower benefits!

AMSOIL 0w20 Sequence Test
AMSOIL Wear Test

The above image is from a wear protection test between AMSOIL and a leading competitor.

TURBOCHARGERS PROTECTED

Turbocharged engines demand exceptional protection due to the extreme heat and stress they generate. This motor oil is specifically designed to meet these challenges, offering unparalleled protection for turbochargers. Its advanced formula consists of high-quality base oils and carefully selected additives that create a robust lubricating film, shielding the turbocharger components from metal-to-metal contact, friction, and wear. This is one of the benefits of synthetic oil usage in specific to this product line!

The superior thermal stability and resistance to oxidation of this synthetic oil ensure that it maintains its viscosity and protective qualities, even when exposed to the extreme heat produced by turbochargers. This is crucial in preventing oil coking, a common issue in turbocharged engines, where conventional motor oils can break down and form harmful deposits that impede performance and lead to component failure. Moreover, the exceptional shear stability of Signature Series motor oil guarantees consistent, long-lasting protection for your turbocharger, minimizing the risk of premature wear and failure. The oil also provides excellent aeration control, reducing the likelihood of oil foaming, which can compromise the lubrication and cooling of the turbocharger.

In summary, this oil delivers unmatched protection for turbochargers, ensuring optimal performance, reliability, and longevity in the demanding environment of turbocharged engines like in the R34 and the Shelby GT500. Popular viscosities include AMSOIL 5W30 and 0W20. Choose this oil for the ultimate defense against the unique challenges faced by turbochargers, and enjoy the confidence and peace of mind that comes with using a high-quality oil.

Oil Pick Up Tube Test
AMSOIL Turbocharger Test

Result from a pick up screen tube test and coking test on a turbocharger; virtually clean!

EXTENDED DRAIN INTERVAL

Are you changing engine oil soon? Signature Series motor oil boasts an impressive extended drain interval of 25,000 miles, thanks to its advanced synthetic formulation and cutting-edge additive technology. The high-quality base oils and carefully selected additives work synergistically to resist oxidation, minimize viscosity breakdown, and combat harmful deposits, even under extreme driving conditions. This allows the oil to maintain its protective and lubricating properties for a significantly longer period compared to conventional oils. Use AMSOIL PI as part of this protection package and you will see the performance benefits. As a result, this engine oil offers superior protection and consistent performance throughout the extended drain interval, similar our XL line, providing vehicle owners with the convenience and cost savings of fewer oil changes. This is an excellent high mileage oil option and is a great product for the majority of cars, trucks and hybrid vehicles on the road today, including most popular American cars, most popular Japanese cars and most popular European cars! 

AMSOIL 25000 Mile Protection Logo

Signature Series can go up to 25,000 miles (40,000 km) or 700 hours or 1 year, whichever comes first!

BETTER COLD CRANKING VISCOSITY AND STARTUP PROTECTION

This particular oil, commonly referred to as syn oil, is a high end lubricant that offers superior performance in various conditions, particularly when it comes to cold cranking viscosity and startup protection for engine components. With its advanced formulation, this motor oil ensures optimal flow even in extremely low temperatures. Cold cranking viscosity refers to the oil's ability to maintain its fluidity during engine startup in chilly weather conditions. The Signature Series engine oil excels in this aspect, as it boasts a low pour point and exceptional resistance to thickening, allowing for quick and effortless cold starts. This is observed by many F-150 owners who use AMSOIL 5W20 Signature Series in severe cold regions in Canada and the USA. Furthermore, this motor oil provides exceptional startup protection for vital engine components, especially when teamed up with AMSOIL oil filters. By creating a robust and durable protective film, it safeguards against wear and tear during those critical initial moments of operation. This enhanced startup protection ensures that engine parts are shielded from friction, reducing the risk of damage and promoting engine longevity. This full synthetic oil's outstanding cold cranking viscosity and startup protection make it an excellent choice for drivers who seek reliable engine performance, even in the harshest weather conditions. This is by far the best oil this company has made! To have an even more performance impact will be using AMSOIL PI as part of your fuel additive regime,

AMSOIL Cold Crank Test
AMSOIL Low Number Sequence Test

PROTECTS AGAINST LSPI

This synthetic oil goes above and beyond in its ability to protect against Low-Speed Pre-Ignition (LSPI), which is one of the many benefits of synthetic oil in this specific product. LSPI is a phenomenon that can occur in modern turbocharged, direct-injection gasoline engines, where an abnormal combustion event happens at low engine speeds and high loads, leading to potential engine damage. This company's motor oil is engineered to combat LSPI. It utilizes a robust additive package and advanced synthetic base oils that effectively reduce the likelihood of LSPI occurrences. By controlling the formation of deposits and providing a strong lubricating film, this motor oil minimizes the chances of pre-ignition and subsequent engine damage. The superior protection against LSPI offered by this oil is essential for drivers of modern vehicles equipped with turbocharged engines like the Hennessey Mammoth 1000. It provides peace of mind by preventing harmful combustion events and ensuring the longevity and reliability of engines. With Signature Series engine oil, drivers can confidently navigate the demands of high-performance engines while safeguarding against LSPI-related issues. Many 5W-30 oil drivers have gone with Signature Series for its protective and performance qualities and have not gone wrong! Great for a DIY oil change project or take it to an oil change services provider.

Positive LSPI Prevention Test Result

LSPI damage of a piston.

TESTIMONIALS: REAL LIFE EXPERIENCE ABOUT THE POWER OF SIGNATURE SERIES

AMSOIL Testimonial Mihai Product Review

As the world of motor vehicles evolves, so too does the demand for superior engine performance. One product that has consistently set benchmarks for quality, durability, and efficiency is the AMSOIL Signature Series Motor Oil. This oil isn't just another lubricant; it's a testimonial to the power of innovative technology coupled with unwavering commitment to high performance.

Tom Weiland, a Ford Flex owner, stands as a resounding testimony to the performance of Signature Series. A proud member of the high-mileage club, Weiland managed to get his Ford Flex over the 350,000-mile mark - a feat not easily attainable. He attributes his vehicle's longevity and high performance to the consistent use of this synthetic oil.

Weiland's Ford Flex isn't a flashy, high-performance car with an engine built to withstand a nuclear explosion. It's a family vehicle, chosen for reliability and comfort. Nevertheless, it withstood the trials of time, miles, and use. The thing that made his vehicle engine last this long was this oil, as attributed by Tom. His vehicle's engine performance had never waned. See the full article at the link below.

But it's not just everyday vehicle owners who testify to the powers of this premium synthetic engine oil. This product has made its mark even in the world of professional racing, where the need for speed meets the necessity for durability.

Race car drivers often push their vehicles to the extreme, testing the limits of both machine and man. Under these conditions, engines must endure high heat, high revs, and aggressive driving styles. Here, the superior protection offered by the those synthetic motor oil truly shines.

Prominent professional race car driver share their experiences, In the high-pressure world of racing, they demand the absolute best from their vehicles. Every gear shift, every corner, every straight – they all make a difference. The engine oil used is a critical factor to ensuring smooth running and longevity of race cars. They found that in Signature Series, it provided unparalleled protection against wear and maintains peak performance even under intense racing conditions.

The testimonials don't stop there. This oil has made a name for itself among those who drive heavy-duty vehicles for a living. Truckers, construction vehicle operators, and others who rely on heavy-duty machinery need an oil that can endure the most strenuous conditions. In these high-demand settings, the need for superior lubrication and protection is not just a preference – it's an absolute necessity and doesn't just stop at motor oil, but includes gear oil that can withstand extreme conditions, such as the popular 75W90 viscosity (Product Number: SVGPK-EA). 

A veteran long-haul trucker adds, "The miles I've put on my rig could take you to the moon and back. With Signature Series, I don't just get to my destination; I get there with an engine that purrs like a kitten despite the heavy loads and the long, challenging hauls. No other motor oil has offered such exceptional engine protection and efficiency."

Whether it's an everyday vehicle like Tom Weiland's Ford Flex or a high-speed race car or even a heavy-duty truck, the experiences of these drivers demonstrate the universal appeal and application of this synthetic motor oil. Its innovative formulation delivers excellent wear protection, phenomenal heat resistance, and outstanding performance under even the most extreme conditions.

In conclusion, this product goes beyond simply lubricating. It acts as the lifeblood of an engine, safeguarding it against wear and tear, and ensuring optimal performance. It's a testament to what motor oil can achieve when crafted with precision, innovation, and a true understanding of an engine's needs. These experiences aren't just statements; they are affirmations that with the right motor oil, the limits to vehicle longevity and performance can be significantly expanded. Take a look at the latest development for older vehicles with the AMSOIL High Mileage oil product line up.

AMSOIL Loyalty Banner

COMPARE PRODUCTS

Use the chart below to compare products and see which is the right fit for your needs. You can compare AMSOIL OE vs XL vs Signature in the following chart as these oils are used across the board and not limited by high mileage or hybrid use. A very common comparison is AMSOIL Signature vs OE.

AMSOIL Compare Oil Chart
AMSOIL Dodge SRT 8 Blue

WHY BUY THROUGH AN AUTHORIZED AMSOIL DEALER?

AMSOIL Authorized Dealer Logo

Opting to acquire your motor oil and lubricants through an Authorized AMSOIL Dealer, like us at HIGHGRADE Lubricants, brings numerous advantages to customers, most notably financial savings in the form of discount pricing opportunities, a comprehensive product selection, and the convenience of direct delivery with free shipping on most orders.

Financial savings is one of the key attractions to AMSOIL. As with many industries, having a discount card provides financial savings. Going through an Authorized Dealer often presents opportunities for more attractive pricing structures compared to standard retail outlets. AMSOIL distributors have a direct relationship with the manufacturer, which typically means they can offer personalized service by cutting out the middleman. This direct relationship can translate into savings for customers, making the upkeep of your vehicle more cost-effective as well as having a point of contact at your fingertips.

Furthermore, having a personalized point of contact offers an all-encompassing line of products which a dealer can provide guidance. From passenger vehicle motor oil to commercial-grade lubricants, this extensive product range caters to a wide variety of customer needs. They have access to an inventory, including synthetic motor oil and lubricants for automotive, powersports, and industrial applications, along with fuel additives, filters, and more. By offering this comprehensive selection, they ensure customers don't have to make compromises on their specific needs or preferences. They can find the perfect product to enhance the performance and longevity of their machinery, whether it be semi truck oil, snowmobile oil, gun oil or products for a car, boat, motorcycle, or commercial equipment.

Last but certainly not least, they provide the utmost convenience with a direct buy and delivery option. The digital age has ushered in an era of online shopping where convenience is king. You can easily purchase your required products with a few clicks from the comfort of your home, and have them delivered directly to your doorstep. This process not only saves time and effort but also allows customers to plan their vehicle or equipment maintenance more efficiently, minimizing downtime. Order this product today and DIY or take it to a synthetic oil change near me facility, like a Take 5 oil change location, a Jiffy Lube near me lube provider, a Valvoline instant installer, another one stop quick lube provider or your own motor mechanic to have it installed professionally. 

In summary, when looking at the next time you plan to be changing engine oil, remember that purchasing through an Authorized AMSOIL Dealer combines the trifecta of benefits: cost-effectiveness, a complete product line, and the convenience of home delivery. These factors contribute to a customer-centric experience that places your needs at the forefront, ultimately ensuring the health and longevity of your equipment. Great for a DIY oil change project or take it to an oil change services provider.

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