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Tire Size vs Mileage?

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Old 07-03-2007, 11:02 AM
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Tire Size vs Mileage?

I m planning on getting some new tires. I would like to get a little bit bigger and wider but nothing too much. Just something that will look great oh yeah I don't want anything that is going to drop fuel mileage too much. thanks in advance.
Old 07-03-2007, 03:22 PM
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Hi, I am using Toyo MT 37 x 20's. My mileage is about 13 around town and 16 on the highway. I only have 3k miles on the odometer. All calcs were done by hand and not the overhead.
Old 07-03-2007, 06:14 PM
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I've got 315 BFG's and get 20 mpg. But, my trek is open highway to and from work. I gained about 1 mph from the stockers.
Old 07-03-2007, 09:32 PM
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If you have an auto and 3.73 gears expect it to drop a lot around town. On the hwy for me it isn't much of a concern because it didn't change much.

With about 70%hwy driving I lost less than 1mpg. Around town driving is what eats it.
Old 07-03-2007, 11:00 PM
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i gained in mileage,when i went to the 315's, i have auto and 4:10's
seemed to drop the rpms down about 300-400, which is just perfect for where i seem to cruise on the high way.it keeps me just under the magic 2000 rpm, and where i get the best mileage.
Old 07-03-2007, 11:25 PM
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With the auto 4.10s are a great asset to have if you're going with larger tires... If it wasn't for the non-availability of ordering when I picked up my 5.9 for a great price I would have got 4.10s no questions asked. It actually was almost a deal breaker for me.

I've found the 3.73 is OK, I use 17 inch wheels to reduce the inertia.
Old 07-04-2007, 09:22 AM
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went with 285s no drop or gain
Old 07-04-2007, 09:54 PM
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I threw a set of 35's on mine and I hate them. I am going to go and get some different tires tomorrow. Yeah driving around town is so bad I cant stand it. If it was me I would just get some all-terrians and be happy.
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