Got me wondering about wheels?

[Hd74ica]

Hello
Don't need new tires and have about 10k on my stock 18 inch wheels. What I am wondering when I read about people putting larger wheels/tires on their truck what does that do to the MPG and the EVIC in general? Does the Lie-0-meter compensate for the change? Just curious. Thanks.

David
In my trailer in the deserts of the Southwest

 

[MADDOG]

The larger profile/width & heavier tires did reduce my MPG on my 6.4L 2500. Around town it was about 2.5 - 3.0 mpg, freeway mileage only dropped about 1.0 - 1.5 mpg although I didn't measure it consistently.

EVIC was fine. I never used the MPG calculator and always hand calculated. The only other error I had was MPH and corrected that with a programmer.

 

[RainDesert]

The larger profile/width & heavier tires did reduce my MPG on my 6.4L 2500. Around town it was about 2.5 - 3.0 mpg, freeway mileage only dropped about 1.0 - 1.5 mpg although I didn't measure it consistently.

EVIC was fine. I never used the MPG calculator and always hand calculated. The only other error I had was MPH and corrected that with a programmer.

What size/brand tires did you put on? Did you have 4.10's? Thanks

 

[MADDOG]

35x12.50R18, 3.73 gears