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2013 Chevrolet Suburban
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Why the gas milage drop

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Old January 15th, 2013, 4:26 PM
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ive been runnin 93 octane from marathon same gas station i only get 200 miles to tank if im lucky usally get 350 miles to tank
Old January 15th, 2013, 5:03 PM
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You're wasting your money.
Old January 15th, 2013, 8:26 PM
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I would only run the high test every so often. Mostly a waste of money. I run a tank every so often when i do a hwy trip to give it clean gas without ethanol. The lower grade fuels can have up to 10%. If you want better fuel milage find a station that sells the lower grade fuels without ethanol. wmhersh72 you might need a tuneup. Plugs wires air and fuel filter. Also try a different station they might have changed there supplier for gas.
Old January 18th, 2013, 5:48 PM
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thanks for the info ive done a tune up with a/c delco shortly after that is when i noticed the fuel mileage drop about 100 - 150 miles to tank everything checks out on comp
Old January 20th, 2013, 8:00 PM
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4x4 or rear wheel drv?I doubt if on 4x4
Old January 26th, 2013, 10:59 PM
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thanks thumper i changed stations and its doin better who thought company owned station would do that but money talks ahhhh
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