API SG

Older API category for spark-ignition engines, of the late 1980s.

Name
Petrol engine oil, API SG performance level
Category
Engine oil performance
Status
Withdrawn — Superseded by API SP, API SQ
Verified
30 August 2026

Products covered by this standard

Eni

one product
Eni Engine oils

Petronas

2 products
Petronas Engine oils

Shell

2 products
Shell Engine oils

Mobil

one product
Mobil Engine oils
  • Mobil Delvac Super 20W-50

    Diesel oil for two- and four-cycle engines in severe service, API CF-4/SG

    • Heavy-duty diesel
    • Cars

    SAE 20W-50

API standards

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