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35 inch tires 16.2 mpg. what is the real mpg?

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Old Sep 18, 2006 | 11:04 PM
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bigfish5's Avatar
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From: jacksonville florida
35 inch tires 16.2 mpg. what is the real mpg?

i know the 35 inch tires are throwing the speedo off. I drove around town alot today and the truck averaged 16.2 in town. I have 325/65/18 tires, which are 35 inch tires , How much mileage am i getting. Sorry about 2 questions back to back, but i am caught up with this truck tonight
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Old Sep 18, 2006 | 11:08 PM
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35" 05''s Avatar
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From: nc
Originally Posted by bigfish5
i know the 35 inch tires are throwing the speedo off. I drove around town alot today and the truck averaged 16.2 in town. I have 325/65/18 tires, which are 35 inch tires , How much mileage am i getting. Sorry about 2 questions back to back, but i am caught up with this truck tonight
are u hand calc? its about 1/10 mile off to the mile. so if it reads 200miles its about 220miles.........i average 16. can get 18.....can get 14
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Old Sep 19, 2006 | 12:56 AM
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Scramblinman's Avatar
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From: Snohomish, WA
Depends on the gear ratio and original tire size the speedo was calibrated for.
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