ILSAC GF-6, API SP & dexos: Making Sense of New Oil Specifications

Oil dipstick

AMSOIL synthetic motor oils meet or exceed the latest performance specifications, including GM dexos1 Gen 2, ILSAC GF-6 and API SP.



Why Did We Reformulate Signature Series Synthetic Motor Oil?

amsoil signature series

Simply put, we reformulated Signature Series Synthetic Motor Oil to solve problems. For all the derision heaped upon the internal-combustion engine, it remains our primary mode of propulsion. And, despite the gains of hybrids and electric vehicles, it will remain so for the foreseeable future.