what is my gas milage
 

my speedometer is off so its hard to know what my mpg is

Any one have a truck similair to mine let me know what mpg you get thanks

85 k20
37x13.5 toyo m/t
355 roller engine kinda high compression but going to change heads soon
th 400 4.10 gears
headers,alum. intake quadrajet carb ele.fan
at 2100 rpms I am doing 55 to 60

thanks

Re: what is my gas milage
 

This question is impossible to answer accurately. Two identical trucks can get different mileage...as if there was an identical truck. You need to figure out how far off your speedometer is off.Is there anywhere with mile markers? Or,have someone follow you at a specific speed and compare readings. At the moment I have no gas gauge and no speedo. I had twp similar trucks. One day,I filled the one with speedo and gas gauge up,wrotethe mileage down,went to the job,and back to the same gas station and filled up again,and figured how many miles I drove and exactly how much gas it took. The next day I did the exact same thing with the other truck. Since I knew how far it was from the gas station and back and how much gas it took I could figure my mileage.

Re: what is my gas milage
 

Ok thanks. Well if any others with lifted trucks with sililar tire size could tell me what they are getting thanks
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Re: what is my gas milage
 

Fill the tank to full. Drive from point A to point B knowing how many miles it is. When you're at point B fill her up again. Divide the miles traveled by the gallons used.