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Old 12-08-2011, 01:48 PM   #27 (permalink)
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Originally Posted by kach22i View Post
That is a nice theory, but in real world practice (on my truck) I can tell you that 4WD eats a very noticeable amount more of gas.

Off the top of my head, I lose about 3 mpg in 4WD.

When your are only getting 18 mpg hwy, and 13 mpg city this can add up quickly.

Lets say I average 15 mpg half/half, 12 mpg is way too low for me.

Is it because your front and rear axles are locked together and scrubbing during turning?
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