Independent technical reference
Understand the API, ACEA and manufacturer standards behind modern engine oils—without the jargon.
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Start with the standard
Browse independent organizations or specifications written by vehicle manufacturers.
International and regional classifications for engine performance and oil quality.
OEM requirements designed around specific engines, service schedules and emissions systems.
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The learning path
Start with the owner’s manual and find the required viscosity and specification.
Learn what each organization or manufacturer approval actually requires.
Confirm the oil carries every required claim—viscosity alone is not enough.
Technical library
JASO GLV-1 and GLV-2 are fuel-economy-focused gasoline engine-oil classifications, but they cover different viscosity ranges and are not substitutes for a vehicle maker’s exact requirement. Learn how GLV-1, GLV-2A and GLV-2B relate to 0W-8, 0W-12, 0W-16 and 0W-20 oils.
Volvo’s VCC C6SP and VCC RBS0-2AE labels are engine-oil requirements, not merely alternative names for 0W-20. Learn what the codes mean, how ACEA C6 and API SP fit into the picture, and why the current manual for the exact vehicle remains the deciding document.
PSA B71 and newer Stellantis FPW codes are engine-specific lubricant requirements, not alternative names for 0W-30 or 5W-30. This guide explains the practical distinction among B71 2290, B71 2297, B71 2312 and FPW9.55535/03, including why a stated approval matters more than a broad “suitable for” claim.
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Oil Specifications for iOS
Keep essential organization and manufacturer oil specifications close at hand on iPhone and iPad.
View on the App StoreBuilt for quick reference