Miles per tank thread - Page 2 - Pontiac G8 Forum: G8 Forums -
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post #21 of 24 (permalink) Old 01-06-2013, 08:51 AM Thread Starter
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filled last night at 245 mile t empty with 51 miles left so one again only 300 ish on a tank. im gona be crying when the 3.45 gears are in

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post #22 of 24 (permalink) Old 01-06-2013, 09:19 AM
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I usually get around 350-370 miles per tank before refilling. Actual average mileage is around 21.5 mpg, but I drive 70% on the highway. I have found that the trip computer is pretty accurate as to fuel mileage, as I calculate at every refill, and currently have over 116K miles on the car. It is 100% stock except for drop in K&N air filter.

The maximum mpg per tank was 26.5 mpg-98% highway, driving the speed limit like an anemic grandma.
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post #23 of 24 (permalink) Old 01-06-2013, 10:28 AM
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I get around 200-250 miles per tank and fill up when its about a quarter left. All city driving and pretty heavy on the gas.

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post #24 of 24 (permalink) Old 01-06-2013, 10:58 AM
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330-340 miles tops. 68-70mph highway cruise, refill when the needle is basically flush with the red mark. The verter made me loose about 2mpg.

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