The ILSAC GF-7 motor oil category was officially licensed on 31 March 2025, replacing GF-6 as the current specification for passenger car engine oils. If you distribute, blend, or buy engine oil for a fleet, this is the first real specification change in years — and there's a real deadline attached to it.
What actually changed
GF-7 was built to address problems GF-6 didn't fully solve: increased wear in modern small-displacement turbocharged engines, low-speed pre-ignition (LSPI) — a knock-like event that can damage pistons in direct-injection engines — and high-temperature performance as engines run hotter and smaller under load. The new category incorporates tougher testing protocols specifically targeting these failure modes.
Two variants, not one
GF-7 isn't a single spec. GF-7A corresponds to API SQ with Resource Conserving — the mainstream replacement for most GF-6A applications. GF-7B applies only to SAE 0W-16 oils, a thinner grade increasingly specified by OEMs chasing fuel-economy targets. Knowing which variant a customer's vehicle actually calls for matters more than just "GF-7 vs GF-6" — the two aren't interchangeable substitutes for each other.
The deadline that matters
API confirmed an 18-month overlap period — longer than the usual 12 months — with the last permitted use of GF-6A and GF-6B running until 1 October 2026. After that date, GF-6-labeled oil can no longer be manufactured or sold as meeting current specification, even though vehicles built to run on it will still be on the road for years. For distributors carrying inventory, that's a real date to plan stock transitions around, not a soft suggestion.
Why this matters beyond North America
GF-7 aligns with tightening fuel-economy and emissions rules for the 2026 model year and beyond — the same broader push toward lower-viscosity, longer-drain formulations that's reshaping specifications well outside the US market too. If you're importing for a fleet running newer-generation engines, ask your supplier which GF-7 variant a formulation is actually licensed against, not just whether it's "up to date."
Have a specific requirement?
Request a quote