Ford F150 Forum - Community of Ford Truck Fans - Larger OEM tires affect MPG?

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Mike5042000

04-03-2013 10:01 PM

Larger OEM tires affect MPG?

I was wanting to go from my 2WD tires (255/65/17) to 4WD tires (265/70/17). Has anyone done this? How much does it affect MPG?

Northlight

04-04-2013 12:12 PM

Tire weight...

...will affect your MPG. It just takes more power to get them rolling....

Also, the diameter of the two tires are different and may require recalibrating your speedometer.

I took a random look at some Bridgestone tires specs in the sizes you've indicated:

255/65-17: Diameter: 30.1" Tire weight: 38 lbs

265/70-17: Diameter: 31.9" Tire weight: 42 lbs

Northlight

zimmer0

04-04-2013 12:21 PM

why wouldnt it? Anything other than stock spec will effect mpg/performance

Mike5042000

04-04-2013 05:18 PM

What if I went from stock 2WD 17" to stock 2WD 18"

zimmer0

04-04-2013 05:20 PM

minimal to no change

HoustonRider

04-04-2013 05:21 PM

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