API Lubricants Get a Major Upgrade! New SQ/GF-7 Standards Released: 40% Performance Boost + Stricter Environmental Standards

In recent years, API lubricant standardshave undergone significant updates with the introduction of the SQ standard andILSAC’s GF-7 standard, targeting modern engine technologies. These upgradesfocus on three key areas: improving fuel efficiency, extending engine lifespan,and reducing environmental impact. Compared to the previous SP/GF-6 standards,the new specifications emphasize compatibility with turbochargeddirect-injection (TGDI) engines and hybrid vehicles, while addressing stricteremission regulations like China’s National VI B standards. For car owners andrepair shops, understanding these changes is critical to selecting the rightoils and avoiding performance losses caused by improper use.

Performance enhancement is the centerpieceof this upgrade. To tackle low-speed pre-ignition (LSPI)—a common issue inturbocharged engines—the new standards introduce the rigorous IX sequence test.This ensures oils maintain LSPI protection over extended periods, with a 40%improvement in effectiveness compared to older standards, significantlyreducing risks of piston damage. Chain wear control has also been strengthenedthrough the new X sequence test, which quantifies anti-wear performance. Thisreduces power loss caused by timing chain elongation by up to 30%. Cold-weatherperformance is another highlight: oils now flow faster at -35°C, improvingcold-start protection by 15% compared to SP/GF-6, benefiting drivers in colderregions.

Environmental compatibility takes centerstage. The sulfate ash content (SASH) limit has been reduced from 1.0% to 0.9%,cutting the risk of clogging gasoline particulate filters (GPFs)—a criticalrequirement for National VI B vehicles. Sulfur and phosphorus levels are nowtightly restricted to prevent catalyst poisoning, extending the lifespan ofexhaust after-treatment systems. The GF-7 standard splits into two categories:GF-7A (for traditional gasoline engines, e.g., 0W-20, 5W-30) and GF-7B (designedfor 0W-16, tailored for hybrids and 2026+ models). GF-7B reduces friction,boosting fuel economy by up to 4.8% compared to GF-6.

The differences between old and newstandards are stark. While SP/GF-6 only suggested a 1.0% SASH limit and lackedchain wear testing, the new standards enforce stricter compliance. Advancedtests like IIIH now ensure better high-temperature deposit control, improvingpiston cleanliness by 14%. Viscosity grades also expanded: GF-7B introducesultra-low options like 0W-8 and 0W-12, pushing performance boundaries. Forrepair shops, this means stricter adherence to vehicle manuals to avoidmismatches—using 0W-8 in older engines, for example, could damage seals.

Owners should tailor their choices to theirvehicles. Newer hybrids or turbocharged models (post-2026) should use APIShield-certified GF-7B oils, while conventional gasoline cars can opt forGF-7A’s 5W-30. Older vehicles require caution: ultra-low-viscosity oils like0W-8 may degrade seals. Look for the "Chemical Box" label to ensurecatalyst compatibility. Repair shops should stock certified brands like Aconnoor Jinxuechi and offer long-oil-change packages for hybrids, balancingperformance and cost efficiency.