Regular or high octane?
70

Asked by Emelody Sep 21, 2023 at 06:22 AM about the 2010 Toyota Avalon Limited

Question type: Maintenance & Repair

I have 2010 Avalon,with143k miles. Sometimes I hear a knock. Should I
continue using 87octane,or higher? Thanks

6 Answers
311,375

Gene answered about a year ago

When was its last good tune up? There could be something else going on as you normally won’t hear anything unless you got really poor quality fuel. But if you want try a few tanks of higher octane and see if it goes away, it not going to hurt anything.

Mark helpful
158,565

James answered about a year ago

I agree, sounds like a bad knock sensor. If your check engine light is on visit your local auto parts store and have them scan the computer for trouble codes. Most stores will do it for free. If you get a knock sensor code, there you go. Hope that helps! Jim

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