ENGINE PERFORMANCE PROBLEM2007 LEXUS ES 350 6 ...

2007 Lexus ES 350

Tiny

garylrit

August, 22, 2010 AT 6:38 PM

Engine Performance problem
2007 Lexus ES 350 6 cyl Front Wheel Drive Automatic 41000 miles

the book says to use 91 octane gas or better. If I use 87 or 89 octane, will that harm the engine in any way or just the performance. What would you use?

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