Originally Posted By: The Critic
Originally Posted By: buster
So the two blends that meet dexos 1 are PZ and MaxLife. Additive technology must have come along way. I guess you could technically use a "blend" in a new Corvette.
+1. This is probably the best conventional oil you can buy that does not have the controversial seal sweller/conditioner additives.
Does the Corvette spec Dexos1 now?
+1
Yeah it calls for dexos 1. Looking at the LZ chart, the dexos 1 spec is pretty stringent. More so than the basic SN/GF-5.
FWIW, the seal conditioners (from everything I've read) should be of no concern.
Quote:
Valvoline seal reconditioners used in the MaxLife High Mileage Oils, are not swelling additives. The seal reconditioners used in our formula help to condition the seals back to their original elastic form and shape, to allow proper sealing, but not swelling.