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AMSOIL Signature Series 5W30



The AMSOIL 5W30 synthetic oil is a revolutionary lubricant engineered to deliver top-notch performance and superior protection. Engaging against competitors like the Pennzoil Ultra Platinum 5W30 and Mobil 1 5W30, this product safeguards the engine against wear by forming a robust protective film over the components, reducing metal-to-metal contact. It surpasses conventional oils by offering extended drain cycles, courtesy of its unique synthetic formula and advanced additive package. This 5W30 synthetic engine oil is especially beneficial for engines with turbos or a supercharger, protecting them against high heat and deposits, ensuring optimal performance and longevity of naturally aspirated engines. This oil is ideal for the daily driver as well as those driving in severe service and normal conditions, and widely available due to the popularity of 5W30. The Signature Series product lineup is highly recommended by many oil change services installers, engine builders and fleet mechanics. 


This product promises not just lube protection, but a comprehensive solution to engine maintenance and protection. It is a potent mix of technology and reliability, destined to redefine the way you perceive engine care. To put into perspective, the Hennessy Venom F5 has pushed the limits of vehicle performance through intricate design and testing, so has the Signature Series 100% synthetic motor oil lineup, which performs at a top level and has become a leader in synthetic oil technology through rigorous testing. Choose this synthetic engine oil for your next AMSOIL oil change, regardless if you DIY or take it into a one stop quick lube facility! Become an AMSOIL Preferred Customer and get up to 25% off on your order!


Key considerations to keep in mind are:

  • Unmatched Wear Protection: This formula reduces engine wear, ensuring top end performance and durability, making it the most popular for discerning daily drivers and high performance seekers.

  • Excellent Temperature Performance: The SAE 5W-30 oil viscosity grade offers rapid start-ups and excellent lubrication in a wide range of temperatures, providing protection for various climates from sub-zero to desert heat.

  • Enhanced Fuel Efficiency: This product line improves engine efficiency, potentially making fuel consumption less without sacrificing power.

  • Extended Drain Intervals: Cost savings of having longer oil change intervals, ensure AMSOIL Signature 5W-30 motor oil maintains it top end standard and popularity with fiscally minded owners, as well as contributing to engine protection throughout extended periods.

  • Superior Engine Cleanliness: The advanced additive formula fights sludge and deposit formation, promoting excellent engine performance and extending lifespan.

  • Priced Competitively with products like the Pennzoil Ultra Platinum 5W30, Mobil 1 5W30 and Royal Purple.


AMSOIL Compare Oil Chart



AMSOIL Signature Series 5W30 Synthetic engine oil stands as a champion in the industry, promising the apex of performance, reliability, and longevity for your vehicle. This revolutionary synthetic motor oil lube, infused with advanced engineering, is designed to meet the most stringent conditions and demanding environments. It is tailored to serve the diverse needs of various vehicle engines and deliver impressive results consistently.

This engine oil works on a unique formulation. It utilizes synthetic base oils and fortified with an advanced additive package. This multi-faceted technology is the perfect blend to meet the expectations of modern high-performance engines, which need more from motor oil than merely lubricating the moving parts. It caters to their myriad needs while enhancing their overall performance of naturally aspirated engines and ensuring that they stay protected in different conditions.

This synthetic oil delivers exceptional anti-wear protection, extending the lifespan of the engine. The robust synthetic formulation creates a strong film of protection around the engine components, such as cylinders, head gaskets, pistons and the camshaft, significantly reducing metal-to-metal contact during start-up and operation. This reduction of friction not only extends the life of the engine but also enhances its efficiency.

AMSOIL 0w20 Sequence Test

Extended drain cycles are another significant advantage of this 5W30 synthetic oil. It is designed to outlast conventional oils, providing protection that extends beyond the traditional oil change interval. The benefits of extended drain cycles is that this synthetic oil oil change saves money in the long run in both product and labor costs. Its durable synthetic formula and proprietary additives provide long-lasting protection that helps extend engine life and prevent the check engine light on!

One of the most prevalent issues that plague today's downsized, turbocharged engines is low-speed pre-ignition (LSPI). This 5W30 motor oil offers a robust solution to this problem, effectively protecting pistons from LSPI. It reduces the chance of these pre-ignition events that can cause severe engine and cylinder block damage.

Positive LSPI Prevention Test Result

LSPI damage of a piston where this product was not used.

Another area where this 100% synthetic oil shines is its role in turbocharger protection. Turbochargers operate in harsh, high-temperature conditions and are highly susceptible to deposits and wear. The oil provides a superior shield to turbochargers. Its resilient formulation resists heat and prevents deposits, ensuring the turbocharger performs optimally and lasts longer.

Clean GM Turbo

Coking test where a turbocharger was protected!

This product helps in preserving horsepower. The engine remains clean, thanks to the oil's exceptional detergency, which helps to keep the engine close to its factory-clean condition. This clean condition aids in maintaining maximum power and fuel efficiency throughout the oil's extended service life.

Clean Piston Test Result

Virtually clean piston after double the industry standard testing time period.

This synthetic motor oil is also designed to limit oil consumption. Its robust formulation helps to maintain the oil's viscosity, ensuring the oil does not volatilize and burn off in high-temperature operations. This characteristic not only reduces oil consumption but also emission of volatile organic compounds.

AMSOIL Low Number Sequence Test

Lastly, the cold-start performance of this 5W30 oil is unparalleled. The excellent low-temperature properties ensure rapid oil flow in cold starts, providing instant lubrication to vital components, such as the crankshaft and pistons, amongst other parts, reducing wear and prolonging engine life. This oil can be installed at any fast oil change location at any time of year.

AMSOIL Cold Crank Test

In a nutshell, this product offers these five key benefits:

  • Protection against wear: It significantly reduces metal-to-metal contact, providing an exceptional anti-wear shield.

  • Extended drain cycles: It provides long-lasting protection, surpassing the traditional oil change interval.

  • Protection against LSPI: It effectively safeguards pistons from the damages of low-speed pre-ignition.

  • Turbocharger protection: Its heat and deposit-resistant formulation ensure optimal performance and longevity of turbochargers.

  • Preserves horsepower and maintains viscosity: It keeps the engine clean, ensuring maximum power and fuel efficiency while reducing oil consumption.

AMSOIL Wear Test

Bearings after 100,000 mile test and almost look like new!

In conclusion, AMSOIL 5W30 100% Synthetic Motor Oil, with its advanced technology and diverse benefits, is the quintessential engine oil for any vehicle owner who seeks uncompromised engine protection, durability, and performance. Order this product direct for your next DIY oil change or take it to your local oil change near me installer or quick oil change lube shop for added protection and performance from this synthetic oil. See the full line of Signature Series products for your other vehicle's synthetic oil oil change!

Clean Turbocharger Oil Pick Up Test

Oil pick up screen virtually clean after testing!


Unveiling the Unmatched Popularity of AMSOIL Signature Series 5W-30 Motor Oil


In the ever-evolving world of automotive lubricants, one product has managed to transcend its competition, capturing the hearts of automotive enthusiasts, professionals, and daily drivers alike. The product is the renowned AMSOIL Signature Series 5W-30 Motor Oil, a lubricant that has earned its place among the industry's elite. The reasons behind its meteoric rise in popularity are multifaceted, stemming from its exceptional performance, advanced formulation, versatility, and unwavering commitment to quality.


Advanced Formulation for Unrivaled Performance


This oil is more than just a lubricant; it's a meticulously engineered solution designed to deliver exceptional protection and performance. At its core, this synthetic motor oil features a blend of cutting-edge synthetic base oils and a high-grade additive package that transcends the ordinary, providing unrivaled wear protection and engine cleanliness for naturally aspirated motors.


One of the key drivers behind the popularity of the Signature Series 5W-30 is its versatility. This motor oil transcends the boundaries of traditional oil formulations, catering to an extensive range of applications. Whether you have a high-performance sports car like a CR Corvette or Toyota Supras, a older 1995 Ford F150, or a daily-driven sedan, the Signature Series product lineup is engineered to deliver optimal performance across various vehicle types. Its adaptability simplifies the decision-making process for consumers, ensuring that it meets the unique needs of their engines, regardless of the vehicle's make or model.


Fuel Efficiency for the Modern Era


In a world where fuel efficiency is paramount, AMSOIL Inc. steps up to the plate with impressive credentials. Its low-temperature properties play a pivotal role in facilitating rapid engine starts, reducing friction, and ultimately enhancing fuel economy. In a time when every drop of fuel counts, this synthetic motor oil not only preserves the life of your engine but also preserves your hard-earned dollars by maximizing fuel efficiency and increasing mileage for synthetic oil being used in your investment.


Extended Oil Change Intervals for Unrivaled Convenience


One of the most compelling aspects of this premium synthetic engine oil is its ability to extend synthetic oil oil change intervals, setting a new standard for the industry. Traditional oils often necessitate changes every 3,000 to 5,000 miles, but AMSOIL challenges this norm with its advanced formulation. This product line allows for extended oil change intervals, reaching up to a remarkable 25,000 miles or one year, whichever comes first.


These extended oil change intervals are not just about convenience; they also translate into significant cost savings over the long run. By reducing the frequency of oil changes, drivers not only save on maintenance expenses but also spare themselves the inconvenience of scheduling and carrying out frequent oil changes. When you utilize your AMSOIL Dealer near me (like us here at HIGHGRADE Lubricants), you can order and store the product until you feel ready to DIY or take to a one stop quick lube to have it installed.


Furthermore, the environmental benefits of extended oil change intervals should not be overlooked. Fewer oil changes mean less used oil to dispose of, resulting in a reduced environmental footprint. This contributes to a more sustainable approach to vehicle maintenance, aligning with the growing awareness of environmental concerns in the automotive industry.


Endurance and Durability for High-Performance and Heavy-Duty Applications


For those who demand the utmost endurance and durability from their engine oil, the Signature Series 5W30 Motor Oil is a prime choice. High-performance engines, often subjected to extreme heat and stress, benefit greatly from the oil's resistance to thermal breakdown, ensuring consistent protection even under the most grueling conditions. This oil is also considered by many as one of the best oil for high mileage vehicles!


Turbocharged engines and vehicles used for heavy-duty applications, such as towing, also stand to gain from the robust formulation of this product. Its ability to withstand high temperatures, reduce wear, and provide exceptional protection is paramount for drivers who depend on their vehicles for both power and reliability.


Customer Satisfaction and Loyalty


The ultimate testament to the success of any product lies in the satisfaction and loyalty it garners from its customers. This top end oil has consistently exceeded customer expectations, cementing its reputation as a preferred choice among discerning drivers. To put into perspective, just as the Hennessy Venom F5 has a loyal following, so does this premium synthetic motor oil! For many customers, the longevity of their engines is a testament to the unmatched protection offered by this motor oil. Experience fewer engine problems, smoother startups, and increased fuel efficiency after switching to this 5W-30 motor oil. Such positive experiences fuel loyalty and lead to advocacy within the automotive community.

In conclusion, the unparalleled popularity of this product is the result of a perfect blend of exceptional performance, advanced formulation, versatility, cost-saving convenience, endurance, and customer satisfaction. It stands as a testament to the company's commitment to innovation and its unwavering dedication to delivering top-tier products that meet the ever-evolving demands of the automotive industry. If you're seeking an engine oil that not only protects your engine but also elevates its performance and efficiency, the Signature Series 5W30 is the choice that delivers consistent, lasting results, in concert with the AMSOI oil oil filter products. Use the AMSOIL Lookup to find all the products you need for your investment. Order this product today and install it yourself or take it to a synthetic oil change near me facility, like a Take 5 oil change provider, a Jiffy Lube close to me lube shop, a Valvoline instant location, another one stop quick lube installer or your own motor mechanic. 


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