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Topic Review (Newest First)
07-28-2012 10:56 AM
wenchy Thanks MarkNog and Rayko. That was helpful.
07-28-2012 09:39 AM
Rayko I was already fairly geared (Rubi). After a 33" x !2.5" x 15" tire and wheel swap I didn't really notice any diff in my MPG.
07-27-2012 03:21 PM
Shrimp Is this a serious question?
07-27-2012 01:31 PM
GreenRubi Absolutely!
07-27-2012 01:27 PM
MarkNog If you get the tire size/gearing right, the effects can be minimal.
07-27-2012 01:26 PM
2five22 Absolutely.

Larger tires and wheels = more mass and inertia. The engine has to work that much harder to overcome the inertia when stopped at a stoplight and accelerate the vehicle to speed. Larger tires can also mean a larger contact point with the ground and that means more friction.

A harder working engine consumes more fuel for an equivalent outcome and that equals lower miles per gallon realized.
07-27-2012 12:56 PM
McDaniel yes
07-27-2012 10:30 AM
kjeeper10 What gearing/tranny/size/weight are all going to determine the loss in PG's

So....... Yes
07-27-2012 10:23 AM
Will a lift and big tires effect my MPG?

I know a lifted Jeep with big mud tires isn't going to run or drive as smooth as one straight out of the factory, but how drastically will a lift and big tires effect the gas mileage of the Jeep?

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