ILSAC GF-7 Oil: What You Need to Know & How to Transition

The automotive industry is preparing for a major change with the introduction of ILSAC GF-7 standards for passenger car motor oils. Set to take effect on March 31, 2025, these new classifications represent the latest advancements in lubrication technology, designed to meet the needs of modern vehicles and new engine technology. 

Below, we break down key aspects of the ILSAC GF-7 standards, including their purpose, benefits, and compatibility with existing motor oil classifications.

Understanding API Motor Oil Classifications

The American Petroleum Institute (API) establishes performance standards and classifications for motor oils. These classifications are designed to ensure that engine oils meet the increasing demands of modern engines, providing adequate protection and performance. Over the years, API classifications have evolved to address advancements in engine technology, environmental regulations, and consumer expectations.

Each API classification has specific performance criteria, including things like oxidation stability, wear protection, and sludge control. For instance, the API SN classification, introduced in 2010, was designed for 2010 and older automotive engines and offered improved high-temperature deposit protection and better sludge control. Subsequent classifications have built upon these foundations, incorporating more stringent requirements to keep pace with technological advancements.

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What Is ILSAC GF-7?

In collaboration with API, the International Lubricants Standardization and Approval Committee (ILSAC) develops specifications to meet the needs of modern passenger vehicles. You can find information on all current and obsolete ILSAC standards here. 

The forthcoming ILSAC GF-7 standard advances motor oil performance, focusing on several key objectives:

• Enhanced fuel economy to help hit emission reduction targets
• Improved engine durability
• Greater oxidation
• Piston cleanliness and control
• Protection against low-speed pre-ignition (LSPI)
• Protection against timing chain wear
• Compatibility with the latest engine designs, including added protection for hybrid engines

ILSAC GF-7A vs. GF-7B

The GF-7 standard is subdivided into two categories: GF-7A and GF-7B. This distinction addresses the requirements of different engine designs and oil viscosities.

GF-7A is tailored for commonly used viscosity grades, including SAE 0W-30, 5W-30, 10W-30, 0W-20 and 5W-20. These grades are prevalent in many passenger vehicles and are designed to provide a balance between fuel efficiency and engine protection.

GF-7B is specific to the SAE 0W-16 viscosity grade. This lower-viscosity oil is engineered for enhanced fuel economy benefits and is suitable for engines designed to operate with such low-viscosity lubricants.

Note: The lowest viscosity grades, such as 0W-12 and 0W-8, are not covered under the GF-7 standard.

Will ILSAC GF-7 Introduce New Testing Requirements?

While many of the existing tests from the GF-6 specification will carry over, some will be revised or replaced to ensure improved engine performance and durability. Key updates include:

• Enhancements to the Sequence IX Engine Test: Originally designed to evaluate LSPI performance, the Sequence IX test will now include an assessment of used oil to verify protection throughout the full oil drain interval.
• Stricter Fuel Economy Testing: The fuel economy testing requirements will be adjusted, with an expected 10% increase for SAE XW-20 and SAE 0W-30 grade oils and approximately a 5% increase for SAE 0W-16 grade oils.
• Potential Introduction of an Oil Gelation Test: A new test is being considered to address oil gelation issues that may arise during vehicle storage.
• Expanded Elastomer Compatibility Testing: Additional testing will be introduced to ensure compatibility with modern engine materials and seals.
• Sulphated Ash Limit Implementation: A limit on sulphated ash content will be added to help reduce engine deposits and emissions.
• Lower MRV Limits for Improved Pumpability: The new standards will include a reduced MRV (mini-rotary viscometer) limit to enhance oil pumpability in cold temperatures.

Transitioning from GF-6 to GF-7 

Here’s a description of how this transition is expected to happen and what its implications are for passenger vehicle maintenance. 

Licensing Timeline

The first allowable use of GF-7 licensed products is set for March 31, 2025. Following this date, oil manufacturers will begin phasing in GF-7 compliant products.

There will be a 12-month crossover period when GF-7 comes into licensing, where both GF-6 and GF-7 will be available. This allows time for inventory turnover. Once the 12-month period is over, GF-6 will become obsolete.

Backwards Compatibility

GF-7 oils are designed to be backwards compatible, meaning they can be used in vehicles that currently use GF-6 oils without any issues. This compatibility ensures that consumers can upgrade to the latest oil standards without concerns about older engine compatibility.

Adjusting Applications

While GF-7 oils are backwards compatible, it's always advisable to consult your vehicle's owner manual or a professional mechanic when considering a switch to a new oil standard. This ensures that the selected oil aligns with the specific requirements of your engine.

Order GF-7-Compliant Motor Oil from Keller-Heartt

At Keller-Heartt, we’re staying on top of these changes and preparing for the GF-7 transition to ensure a smooth shift for our customers. Through collaboration with industry partners, we will be fully prepared with GF-7-compliant motor oils when the official licensing launches on March 31, 2025. 

If you want more information on this transition and our compliant products, please contact our team. We are happy to help!