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97DakSport4x4
Dodge Dakota
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6/14/2004
13:34:25
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 Subject: 33x12.5 mpg?
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Message:
How much decrease in mpg can I expect from going from 31x10.5 to 33x12.5? I'm getting about 15 highway and 13 city with my 5.2.
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97DakSport4x4
Dodge Dakota
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6/15/2004
19:37:07
|  RE: 33x12.5 mpg?
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Message:
Anyone?
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David
Dodge Dakota
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6/16/2004
04:12:19
| RE: 33x12.5 mpg?
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Message:
very close to the same..
a taller tire in theory gives you a lower rpm...better gas mileage.
however, reality.. more weight, more surface area on road..
your gonna have noticeably slower acceleration, but gas mileage down at most 1 mpg
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Kory
Dodge Dakota
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6/17/2004
21:13:08
|  RE: 33x12.5 mpg?
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Message:
It all depends on the type of tire you're using now and what you plan on using. When I switched to 33" All-Terrain's on my '98 5.2L from stock, I didn't notice any change. However, when those tires wore out and I switched to 33" Mud-Terrain's, my mileage dropped 2 mpg. The larger lugs not only make the tire heavier, they also create more wind resistance, rolling resistance, etc... 2 mpg isn't a whole lot, but I did notice a difference. (I check mileage at darn-near every fill-up)
~Kory
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