Gas mileage expected from my GMC diesel?

I bought a 2000 gmc k3500. Its has custom intake, and dual exhaust (stacks) What kind of gas mileage can i expect Its a 6.5l diesel.

Tags: Diesel, expected, from, mileage

3 Responses to “Gas mileage expected from my GMC diesel?”

1. ChevyBlazerlover says:

   October 11, 2011 at 4:41 pm

   well
   Diesel fuel burns very slowly compared to gasoline fuel so you should be getting about 17 city and 23 highway.

   Hope I helped
2. texaswildman says:

   October 11, 2011 at 5:33 pm

   about 15 miles to the gal.
3. mikey says:

   October 11, 2011 at 6:19 pm

   Shouldn’t be using much gas unless you are mixing it so as to be able to start it. About 15 mpg on diesel though.