7.3L and 6.9 IDI (Pre 1994)
Hey ya'll,
I got a 1994 idi 7.3 with factory turbo with an auto trans about 3 months ago and I've seen a steady decline in MPG both street and highway driving. It is a 4x4 with the Roll-a-Long package so I'm guessing it is a 4.10 gear ratio. What is an acceptable MPG for a rig like this? It...