The wife was just given a '97 ES300, and thus I need to get up-to-speed on everything-ES300......
Great to find this Forum, and thanks to the owner(s) and mods.
I was told by the dealer that, except for a couple/few models designed with synthetic motor oil usage in-mind, non-synthetic is still recommended by Lexus....... Hard to believe, given the qualities and performance of synthetic, especially under more-extreme conditions.
I would appreciate any knowledgeable input re the relative merits of using syn vs. non-syn in this machine. Is there ANY reason, whatsoever, why one would not want to use syn.....??
Also, opinions re viscosity for a typical 70-95 degree summer season...? [ I've never been one to accept, absolutely, any mfgrs. viscosity recommendations, given the 'CAFE' standards influence, etc. For me, it's about max. protection, period. Not emissions, not fuel economy, just longevity....]
Also.....recommendations re transmission fluid?
Thanks.