Quote:
Originally Posted by Disco Mike
The lower octane you run in your Rover, the lower your power and mileage. Here in Colorado I run 91 octane at around the 6000 foot range and get around 18.5 MPG on the road at 65 MPH and around 13 MPG in town. I have had to buy 87 octane when up in the hills or when coming off a trail and my mileage has always dropped about 2 MPG. Even more important for us is the fact that Rover engine will carbon up on low octane gas and the repairs from the far out weigh any savings from buying cheap gas. Our engines can adjust to a lower octane, to a point but not to the build up of carbon.
Stay with the higher octane gas, enjoy more power and better mileage.
Mike
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Very good points! Thanks Mike
Adding my two cents, lower octane creates carbon build-up. Carbon build-up increases detonation problems by storing heat. So running low octane fuel for a lengthy period of time is a double-whammy for poor performance and mileage.
