Just curious what everyone else is getting for fuel mileage out of their idi. I have a 92 ext. cab long box dually 2wd with e4od stock 215/85/16 size tires and 4.10 gears was a N/A motor but has old non wastegated banks turbo system on it. 212,000 on the ticker now. In the last 12,000 miles of...