Bottgers: "The Chevron 'SL' isn't 'CF' rated, but dino oil doesn't get any more 'premium' than this stuff."
Um, I think Johnny might disagree with you there.
Isn't Chevron Supreme a Group II while Pennzoil a Group II+?
I have to say that a year or more ago I would've assumed that having a diesel "CX" rating on an oil would mean that it would be better for a gas engine. Not so anymore. Some qualities (additives) of the double duty oils may actually be worse as the additive package is asked to do some very different (not necessarily better or worse) things.
Oh, and ...
C = Compression ignition
S = Spark ignition
Um, I think Johnny might disagree with you there.
I have to say that a year or more ago I would've assumed that having a diesel "CX" rating on an oil would mean that it would be better for a gas engine. Not so anymore. Some qualities (additives) of the double duty oils may actually be worse as the additive package is asked to do some very different (not necessarily better or worse) things.
Oh, and ...
C = Compression ignition
S = Spark ignition