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tires affecting MPG

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Old Oct 2, 2013 | 05:59 PM
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tires affecting MPG

I know with my old 4.9L gasser putting knobbier tires made my MPG drop significantly. I heard different treads dont really affect diesels all that much...Is this true? this is whats making me debate Cooper AT3 or Cooper STT (what i had on my old truck)
 
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Old Oct 2, 2013 | 06:44 PM
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From: Mi'kma'ki
i think you'd notice a big difference between those.i would go with the at/3 just because fuel costs so much now.
i run the moderate tread also to keep economy up but traction sucks.just keep her between the ditches and carry some chains in bad weather is what i do.this all depends on how much you drive though.if i didn't put on many miles,then screw it,id run some aggressive meats.

CooperTiresConsumer - Discoverer A/T3<span class='trademark'>™</span>

CooperTiresConsumer - Discoverer STT<span class='trademark'>™</span>
 
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Old Oct 2, 2013 | 07:19 PM
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OK, I figured they would affect it, IDK why someone thought that just because its diesel doesnt mean it wont affect MPG very much. Im trying to drive the car as much as I can, but when winter rolls around I want something thats good. My STTs i never had a single problem with them and they looked pretty sweet too
 
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Old Oct 2, 2013 | 09:42 PM
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I went from BFG ATs to toyo MTs and gained almost .25mpg i think it doesnt really make a difference personally. Everyone always claims going bigger hurts mileage when every time ive had the opposite.
 
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Old Oct 2, 2013 | 10:12 PM
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width is what effects mileage more than anything. Did for me anyway, plus it handles better with narrower tires.
 
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Old Oct 2, 2013 | 11:53 PM
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From: Sweet home Alabama
And the hardness of the tire,if its a lifted truck size of tire won't make too much of a difference your still going to be pushing a lot of air.
 
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