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sakhi93
Lv 4
sakhi93 asked in Cars & TransportationCar MakesLexus · 10 years ago

Is the gas change from 89 to 93 octane going to be harmful to my 2007 Lexus ES350?

I bought the car with 8k miles on it an up until that point it had used 91 octane. Then from 8k-30k miles I used 89 octane on the car. Now a Costco gas station opened near me and is selling 93 octane for the price of 89 octane and now fill up on that. Is this move going to hurt my performance, reliability. The gas mileage has been about the same since I have the in car computer.

4 Answers

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  • oklatom
    Lv 7
    10 years ago
    Favorite Answer

    Lexus recommends 91 octane. The computer will adjust to the 93, and as long as you aren't wasting money that will be fine.

    Remember, a 50-50 mix of 89 and 93 will equal 91.

  • ?
    Lv 6
    10 years ago

    Higher octane will not make your car run faster or smoother as people seem to think and only

    luxury cars need to use high octane because of the weight.

  • Kenny
    Lv 7
    10 years ago

    Going to a higher octane only is harmful to your wallet(in your case not).

  • Vipassana
    Lv 7
    10 years ago

    It won't do a single thing to the car.

    It won't help. It won't hurt.

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