Tire questions
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Registered User
Joined: Aug 2012
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Ahh! i see i didn't expect that lol. So what's the tire size on the inside door? It shows tire pressure for 245/75/16?
Banned Goober Smoocher
Joined: Jun 2010
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Why they have that there I have no idea.
But if you get LT 285's, run 45/40 front and rear. That's what I run, and it rides nice.
Legend
Joined: Jul 2011
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From: Austin, TX
Larger tire = larger diameter. Speed counts axle revolutions to determine speed. With a larger tire, you cover more distance per revolution, so, speedo reads slower than what you are actually going.
Going to larger tires, even with a tuner, WILL reduce fuel economy for your driving style. It will be slightly better on the freeway.... but, I don't think you do enough of that to offset the around town losses. Re-gearing would help, but, it would take forever for the boost in fuel economy to offset the cost. You should already have 4.10 gears though, so, you may not see too much of a difference.
Going to larger tires, even with a tuner, WILL reduce fuel economy for your driving style. It will be slightly better on the freeway.... but, I don't think you do enough of that to offset the around town losses. Re-gearing would help, but, it would take forever for the boost in fuel economy to offset the cost. You should already have 4.10 gears though, so, you may not see too much of a difference.
One thing to keep in mind when calculating mileage. If tires are oversized, do NOT use odometer to calculate mileage with or it will be calculated incorrectly. It will look worse thn it is.
Banned Goober Smoocher
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Boom, fixed.
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Joined: Aug 2012
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What about the odometer? will it be off as well?