The larger tires will cause your odometer to read slow, or less miles than
you actually travel, therefore in theory your mpg reading should be lower
than actual.
----- Original Message -----
From: "Bill Pitz" <dakota@billpitz.com>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Tuesday, June 17, 2003 1:34 PM
Subject: Re: DML: I'm sooooo confused!?!?
>
> On Tue, 17 Jun 2003 01:43:11 -0400, Donald.Mallett@BNSF.com ("Mallett,
> Donald B") wrote:
>
> >
> >Ok, Bear with me on this again. Last year I put on a set of 31x10.5R15
> >replacing the stock 255/65r15 badyears. I have gone to the DML
TireCalc.cgi
> >and found the new tires to be 8.74% larger in circumference. The question
> >is, will this increase or decrease the overhead computers MPG read out?
> >Please simple easy to read answers!
>
> You could probably have the dealer re-calibrate your computer -- they
> can only choose stock sizes, but my '00 Dak came with 31x10.5x15 tires
> stock, so it should definitely be possible.
>
> -Bill
>
>
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