The Results: 92 vs. 87

February 24th, 2011 at 9:13 am

Back on November 22, 2010, I decided to start a test using 87 octane gasoline instead of the recommended 92 octane gasoline like the owners manual states.

The original plan was to test with 5 fill ups using 87 octane gasoline.  I ended up testing with 8 fill ups.

The different between the gas mileage while using 92 octane gasoline and 87 octane gasoline is almost unnoticable.

So, I fill up with 87 octane gasoline now instead of 92 octane gasoline.

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2 Responses to “The Results: 92 vs. 87”

  1. Pdmadden Says:

    Thank you very much! This is exactly the answers to the questions I have regarding the Tiguan. We are looking to buy one but was very worried about the impact on mileage when using 87 octane. Excellent detail. I will probably finalize with the dealer tomorrow.

  2. UNU Says:

    Glad the information helped.

    I do want to point out that while the 92 octane vs. 87 octane test hardly showed a difference in MPG, the owners manual and the sticker on the inside of the gas door says the minimum recommended octane for the 2.0T motor is 91.

    Using 87 octane for a long period of time may cause problems with the motor/turbo/etc.

    I did not buy my Tiguan. I leased it.

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