Motor Oil Basics & Label Reading
How to Read a Motor Oil Label: API, SAE & ILSAC Explained
Motor oil labels carry six pieces of information — most drivers decode one. Here's what SAE viscosity, API SP, ILSAC GF-6A, and the rest actually mean.
Motor oil labels carry six pieces of information — most drivers decode one. Here's what SAE viscosity, API SP, ILSAC GF-6A, and the rest actually mean.
API SP replaced SN Plus in 2020. ILSAC GF-6A and GF-6B cover newer thin-oil engines. Here's which certification your car actually needs and why.