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  #1  
Old 09-09-2009, 06:28 PM
greyghost greyghost is offline
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Default tiresize vs mpg

ok guys here's a question what should i expect my gas milage to go? i steped up from a 225-75-15 to a 235-75-15 i'm thinking maybe a loss of 1-2 mpg?
the truck defently looks better now, the wheel wells are full of tire.
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  #2  
Old 09-09-2009, 06:40 PM
DieHard4rd DieHard4rd is offline
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1-2MPG sounds about right.

My wife went from 180 60R-15 to 185 65R15
& lost about 1.5-2mpg.
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  #3  
Old 09-09-2009, 06:44 PM
greyghost greyghost is offline
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that's what i was thinking..
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Old 09-09-2009, 06:50 PM
STL STL is offline
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Going from a 28.3" tire to a 28.9" tire when your speedometer reads 55 you are actually traveling 56 mph so 1-2mpg is responsible
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Old 09-09-2009, 06:52 PM
greyghost greyghost is offline
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Quote:
Originally Posted by STL View Post
Going from a 28.3" tire to a 28.9" tire when your speedometer reads 55 you are actually traveling 56 mph so 1-2mpg is responsible
i was waiting to see one of those speed sencers along the road to see how much the speedo would be effected. thanks stl...
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Old 09-09-2009, 06:59 PM
blueovelboy blueovelboy is offline
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.6 of AN INCH that ant much and it throws off speedo that much?
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Old 09-09-2009, 07:03 PM
STL STL is offline
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Ya but you would hardly notice it anyways
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Old 09-09-2009, 09:00 PM
blueovelboy blueovelboy is offline
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Quote:
Originally Posted by STL View Post
Ya but you would hardly notice it anyways
kinda my thought
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Old 09-09-2009, 09:15 PM
greyghost greyghost is offline
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i'll let ya know the next time i go past one of those portable speed markers.
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Old 09-09-2009, 09:30 PM
blueovelboy blueovelboy is offline
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funny story my buddy just got out of a speeding ticket using one of though thing that they put out to show you your speed to get you to slow down he showed the judge how it reads a tuning fork hit the fork and hold it up in line of the radar and the radar goes up and down all sporadic from 5mph to like 45 mph so the judge through it out and said next time he would through the book at him
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Old 09-09-2009, 09:35 PM
greyghost greyghost is offline
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blueovelboy, that was funny to bad he didn't get that on youtube..
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Old 09-10-2009, 03:54 AM
STL STL is offline
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There is on on our way to Kansas City and is shows our beetle 2 mph faster than what the speedometer reads
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Old 09-10-2009, 06:54 AM
Clem Clem is offline
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I am really pleased to see a thread that supports what i have said for years.
Larger tires are not always going to give better mileage!
This has been a real hot topic on other forums, with the majority saying you will get better mileage from taller tires.
When I were commuting the 30 miles to work, which is almost flat, non stop and go, I had 265/70/16's on my Ranger, that equated to 21-22 MPG. When I started driving in town all the time, my mileage dropped to 15-16 with those tires. A tire change to 245/16's gets 17-18 in town and 19.5 to 20.5 on the highway.
1-2 MPG isn't much until you figure the life of the vehicle. At today's prices I would expect that to be a couple grand.

Ray
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Old 09-10-2009, 07:27 AM
Jay FX4 Jay FX4 is offline
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GPS is a good way to determine your speed.
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  #15  
Old 09-10-2009, 04:10 PM
greyghost greyghost is offline
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Quote:
Originally Posted by Jay FX4 View Post
GPS is a good way to determine your speed.
well when your living on $670.oo a month you go sparingly on the toys.
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