Recent content by Sunnybono

Thanks guys/gals. I didn't know that this 6cyl engine has a PCV valve. I will also looking to the Seafoam application. sk

A buddy of mine owns a 2002 Highlander with only 150k kms and has noticed a puff of blue smoke, only during cold start ups. Yes, it's also eating oil too. Determined it is a Valve Stem Seal issue. My question is what changes can he make to his regular maintenance (better quality oil) or...

Originally Posted By: dwendt44 The non-D.I. engines probably don't need the Dexos but GM calls for it so dealers don't have to carry yet another type of oil. Also, it's an upgrade from the usual conventional oil that most GM owners used up to this point. If you use synthetic oil, don't worry...