iker42

We ran our longest tank the other day, yet still had 5 gallons in the tank... We factored the math and realized that we were only getting 14 mpg... So it lead to the question of, Our running 265's without the correction of the speedo, will this lead to a wrong miliage reading, and maybe we didnt hit truley 200000 miles the other day?

Mike

Shovelhead

Did you use the correction factor, or are you just relying on the Odometer reading?
I know with my 235's instead of the stock 216's, I have to use a .04 correction factor for all my mileage calculations.

iker42

I didnt know there was a correction factor... Anyone know where i can find this factor and how to use it?

Mike

Shovelhead

http://www.dakota-truck.net/TIRECALC/tirecalc.html

Plug in your tire sizes and it will show you the factor you'll need to use.

iker42

Thank you Shovel