...in the Owner's Manual for a 2009 Lexus ES 350, Regular, Premium, or Super Premium?? 92 or 93 octane. In my area of the country we have regular, super and premium thus the 92 or 93 octane fuel ...
...adjusts engine settings (the ignition timing curve via the anti-knock sensors) to suit the lower octane ("regular") fuel. The only penalty is that the engine will not have quite as much power as
does the 09 es350 need 93 octane gas or will it run on 87 octane you should have a factory affixed sticker inside gas compartment cover listing premium fuel only or also listed in your owners manual. ...
...in a bottle of Slick 50 AFTER you do the recommended oil change. (4) Lastly, use NOTHING but 93 octane gas in you vehicle. If you do ALL of these step's, you should notice the difference. It
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