Wheel size and MPG - Ford Powerstroke Diesel Forum

 
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post #1 of 4 Old 04-01-2008, 08:21 PM Thread Starter
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Wheel size and MPG

if i were to go to a 19.5 rim with commercial tires, would it increase my mpg?

also, if going from 235/85 to 265/75 would that decrease my mpg?

03 F350 7.3L FX4 CC LB Dually
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post #2 of 4 Old 04-01-2008, 08:27 PM
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I went from stock tires to 35's and went from 20mpg to 18mpg. If you just change to 19.5's keeping the same tire diameter as stock it will not affect your mileage.

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post #3 of 4 Old 04-01-2008, 08:40 PM Thread Starter
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so what about with width, that would decrease mpg to then right?

03 F350 7.3L FX4 CC LB Dually
190,000 miles and climbing

4” Exhaust turbo back w/ 5" tip
Gearhead Automotive Performance Chip
AFE Stage 1 Cold Air Intake
TN BB
238cc Hybrids
ITP Reg. Return w/ Intank Mods
KCM S.S. HPX Line,
ITP Overboost Annihilator
Banks Torque Converter, Intercooler
Transgo Shift Kit
boost, pyro, tranny temp carbon fiber gauges to match interior, Aeroforce Scan Gauge
6.0 Tranny cooler
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post #4 of 4 Old 04-02-2008, 12:18 PM
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a little, not by much, but with commercial tires you'll go a lot longer before needing to buy new ones
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