Standards & approvals

ACEA A1/B1

ACEA's sequence for low-viscosity petrol and light-duty diesel engines. An earlier sequence, no longer on ACEA's current list; it remains the level specified for the engines of its era.

Name
ACEA A1/B1 oil sequence
Issued by
ACEA (European Automobile Manufacturers’ Association)
Category
Engine oil performance
Status
Superseded
Verified
30 August 2026 · Source

Products meeting ACEA A1/B1

Engine oils

Cleaners & service products

ACEA standards

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