Details of new motor oil specifications released

Details have been released about the much-speculated API GF-6 specification for motor oils.

Starting May 1, 2020, oil manufacturers will be required to move fluids to the new API GF-6 specification.

With the new GF-6 specification comes a brand-new set of engine tests not seen in the industry before, and splits the API specification into two categories:

GF-6A applies to grades with viscosities 0W-20 and greater

GF-6B applies to grades with viscosities lower than 0W-20 (Grade 0W-16)

According to Wakefield Canada, makers and marketers of Castrol oil in Canada, the transition to GF-6 also brings a new API “SP” spec, which replaces the transitional API SN+.

“This means that the GF-5 SN+ protection against catastrophic engine failure associated with Low Speed Pre-Ignition (LSPI) is now automatically covered by the new GF-6 specification,” a press release from Wakefield states.

The company says Castrol has already transitioned all applicable automotive fluids to the new GF-6 specification. This will be reflected on Castrol labels starting May 1.