Depends on the year, condition of the engine, size of the truck, gear ratio of the axles, size of the tires, driving habits, etc.
Could be as low as 12 MPG or as high as 28 MPG
Yes Cummins diesel and a 4x4
A 1995 2500 could have a 5.9L V8, a 8.0L V10, or the 5.9L Cummins diesel.
12
$ 40 from Rockauto.com
7 gallons
12 quarts 15w40
Mopar, Wix, Cummins.
12 quarts 15w40
YesYes
Approx 11.5 to 12 quarts
Any Dodge diesel to date features and inline, six cylinder Cummins engine.
It was available with the 5.9L v8 gas, the 8.0L V10 gas, and the 5.9L inline 6 Cummins diesel.