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Gas Mileage differences

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Old 10-20-2011, 02:04 PM
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Default Gas Mileage differences
I was doing my gas mileage calculations and I remember reading a post on lifted jeeps and actually going 1.1 or 1.2 miles per mile that the trip gauge says it is going. Onyone have a definite on this? I have a 1990 4in with 31's. thanks
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Old 10-20-2011, 02:11 PM
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yes, you have to get the right gear for your speedo
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Old 10-20-2011, 03:08 PM
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Yes, you actually do, go it gets off..which in return can make your mpg "look worse.
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Old 10-20-2011, 03:32 PM
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A tire that is 10% larger than stock will drop the speed and odometer readings by 10%.
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Old 10-20-2011, 04:20 PM
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A lift won't affect speedometer readings but different tire size definitely will.
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Old 10-20-2011, 04:28 PM
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Jeep Speedometer Gear Chart

-Joe
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