Understanding ILSAC GF-6: The Best Engine Oils for Modern Vehicles

ILSAC GF-6, crafted by the International Lubricant Standardization and Approval Committee (ILSAC), sets benchmarks for engine oil performance. It’s tailored to enhance fuel efficiency, curb greenhouse gas emissions, and safeguard the durability of contemporary engines.

Subcategories within ILSAC GF-6:

  1. ILSAC GF-6A pertains to conventional viscosities and retains backward compatibility with prior specs (GF-5 and earlier). Oils meeting GF-6A criteria are engineered to furnish enhanced wear protection, shield against high-temperature deposits, and maintain oxidation stability. Moreover, they offer improved fuel economy and safeguard turbochargers.
  2. ILSAC GF-6B is tailored for lower-viscosity oils, notably the SAE 0W-16 grade, distinct from GF-5 and earlier specs. While akin to GF-6A, GF-6B oils are uniquely crafted to optimize fuel economy in contemporary engines engineered for ultra-low viscosity oils.


The ILSAC GF-6 specifications encompass several key requirements for engine oils, aimed at providing better performance, protection, and fuel efficiency for modern vehicles. Here are some of the main features and specifications of ILSAC GF-6:

GF-6 oils are designed to enhance fuel efficiency by reducing internal engine friction and optimizing oil flow properties. They offer improved wear protection, especially in high-stress areas like timing chains and valve trains, extending engine life. These oils work effectively with modern emission control systems, reducing harmful emissions and meeting environmental regulations. They also prevent Low-Speed Pre-Ignition (LSPI) in turbocharged gasoline direct injection (TGDI) engines. GF-6 oils are backward compatible with older specifications and provide improved deposit control to keep engines clean. Additionally, GF-6 includes specifications for both traditional (GF-6A) and lower-viscosity oils (GF-6B), accommodating various engine designs.

Overall, ILSAC GF-6 specifications represent a significant advancement in engine oil technology, offering better performance, protection, and environmental compatibility for modern vehicles.

Key Improvements

  • Enhanced protection against low-speed pre-ignition (LSPI), which is a concern in modern turbocharged gasoline direct injection (TGDI) engines.
  • Better protection against timing chain wear.
  • Improved fuel economy and emissions reduction.
  • Enhanced protection against sludge, varnish, and high-temperature deposits.

These standards help ensure that engine oils meet the needs of modern vehicles, providing better performance and protection while also supporting environmental goals.

When selecting an oil, it’s essential to consult your vehicle’s owner manual to ensure you’re using the correct viscosity grade and oil type recommended by the manufacturer. Additionally, look for the ILSAC GF-6A or GF-6B certification mark on the oil container to confirm it meets the latest standards.

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30

  • Known for providing excellent wear protection and enhanced fuel economy.
  • Available in viscosity grades such as SAE 0W-20 and SAE 5W-30.

KLOTZ 2-Stroke Oil

Mobil 1 Advanced Fuel Economy

Mobil 1 Advanced Full Synthetic Motor Oil 5W-30 safeguards your engine from the five factors causing long-term damage, protecting critical parts for up to 10,000 miles*, meeting ILSAC GF-6 standards for LSPI and timing chain wear protection, enhancing fuel economy, extending engine life by preventing deposits and sludge buildup, and offering superb internal heat (up to 500°F) and low temperature (-30°F) protection.

Castrol Edge Extended Performance 5W-20 Advanced Full Synthetic Motor Oil

  • Offers superior protection against viscosity breakdown and low-speed pre-ignition (LSPI).
  • Available in viscosity grades like SAE 0W-20, SAE 5W-20, and SAE 5W-30.

KLOTZ 2-Stroke Oil

Castrol EDGE Extended Performance

Maintains maximum horsepower 25% longer than EDGE with SPT, offers the strongest oxidation control and wear protection, exhibits the lowest volatility in grade among leading blends, conventional, and synthetic oils, meets Ford WSS-M2C153-H, Ford WSS-M2C930-A, Ford WSS-M2C945-A standards, and exceeds ILSAC GF-5, API SN, ACEA A1, and ACEA B1 specifications.

Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil

  • Provides exceptional engine cleanliness and protection.
  • Available in grades including SAE 0W-20, SAE 5W-20, and SAE 5W-30.

Pennzoil Ultra Platinum Full Synthetic

Pennzoil Ultra Platinum is a full synthetic 5W-20 engine oil with PurePlus Technology, trusted in racing for unparalleled engine protection*. It extends engine life and protects for up to 20 years or 750,000 miles, whichever comes first**. Outperforming competitors, it offers superior wear protection from friction, maintains engine power, and enhances fuel economy. It exceeds industry standards, keeping pistons exceptionally clean and providing unsurpassed sludge protection for high-performance and luxury car engines. Furthermore, it’s formulated for faster low-temperature oil flow and robust protection in extreme heat conditions.

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil

  • Known for its enhanced anti-wear additives and superior temperature protection.
  • Comes in viscosity grades such as SAE 0W-20, SAE 5W-20, and SAE 5W-30.

Valvoline Advanced Full Synthetic

Advanced protection against the four main causes of engine breakdown—wear, friction, heat, and deposits—with 40% better wear protection and 25% better deposit protection as tested, exceptional high/low temperature protection, minimizing expensive repairs due to exhaust system damage, meeting or exceeding all requirements of ILSAC GF-6A, API SP, API SN with SN PLUS, API SN, GM dexos 1 Gen 3, all American-made and formulated to maximize engine life and improve performance.

Quaker State Full Synthetic 0W-20 Motor Oil

  • Provides strong wear protection and high-temperature performance.
  • Available in grades such as SAE 0W-20, SAE 5W-20, and SAE 5W-30.

Quaker State Full Synthetic 

This full synthetic 0W-20 motor oil delivers strong engine performance and deposit protection between oil changes, enhances fuel economy, provides superior lubrication flow and pumpability at extreme temperatures compared to Quaker State conventional and synthetic blend oils, boasts high resistance to oxidation for prolonged oil freshness, reduces friction for maximum horsepower compared to Quaker State conventional and synthetic blend oils, maintains optimal viscosity throughout, and comes in a single 5-quart bottle with an ergonomic design for easy handling and pouring.


In conclusion, advancements in engine oil technology, exemplified by standards like ILSAC GF-6, have revolutionized automotive lubrication. These standards address modern engine demands, including improved fuel economy, enhanced wear protection, compatibility with emission systems, and prevention of issues like low-speed pre-ignition (LSPI). By meeting or exceeding these standards, oils such as Mobil 1 Advanced Fuel Economy, Castrol EDGE, Pennzoil Ultra Platinum, and Valvoline Advanced Full Synthetic offer drivers exceptional performance, longevity, and environmental responsibility. Whether it’s extending engine life, maximizing horsepower, or protecting against extreme temperatures, these oils provide comprehensive solutions for today’s vehicles, ensuring optimal performance and reliability over the long haul.

  1. Fleetguard LF14000NN: Best Oil Filter for Your Engine? – Enhance your engine’s performance with the optimal oil filtration solution tailored to its needs – Click here.
  2. Oil Change Time Warp: How Long Does It Really Take? – Navigate the mysteries of oil change durations for a clearer maintenance schedule and smoother engine operation – Click here.
  3. What Color is Transmission Fluid? Unlock Your Vehicle’s Health – Decode the significance of transmission fluid color for insights into your vehicle’s overall health and well-being – Click here.
  4. List of Approved Oils Meeting VW 508 00 Standard – Discover the oils meeting VW 508 00 standard for optimal engine performance and longevity – Click here.
  5. HCF 2 Transmission Fluid Change Frequency: Get Expert Recommendations – Stay informed on the recommended intervals for HCF 2 transmission fluid changes to optimize your vehicle’s performance and durability – Click here.

Related Posts

Honda recon oil capacity aand oil type

[2005-2024] Honda Recon Oil Capacity, Oil Type & Filter

Ryan McCain6 min read

Have you ever wondered what the oil capacity is for a Honda Recon? Or what type of oil to use…

Unlocking Efficiency: Exploring the Benefits of 0W-8 Motor Oil

Unlocking Efficiency: Exploring the Benefits of 0W-8 Motor Oil

Jobelle Corpuz7 min read

0W-8 motor oil is designed for high efficiency and engine performance. It has low viscosity for easy startups in cold…

best oil for nissan 350z

Best Oil For Nissan 350Z

Ryan McCain7 min read

Do you know which is the best oil for your Nissan 350Z? Choosing the best oil for your VQ35HR engine…