API and ACEA classifications

A reference for quality classes: what the API codes for petrol and diesel engines mean, the European ACEA scheme, and its predecessor, CCMC.

31 articles in the section

Subsections

  1. API classification What API is, how to read the code, and which classes exist. 3 articles: API Engine Oil Classification Decoding the API code What API classes are there?
  2. API classes for petrol engines From SA to SM: a description of every “S” class. 11 articles: API SM Class API SL Class API SJ Class
  3. API classes for diesel engines From CA to CI-4 PLUS: a description of every “C” class. 12 articles: API CI-4 (CI-4 PLUS) Class API CH-4 Class API CG-4 Class
  4. ACEA classification The European ACEA classification: its history, members and what the codes mean. 5 articles: ACEA - 2004 Decoding ACEA The history of ACEA