EPA estimates are for the same truck with 4.9 L I-6 gasser, since EPA didn't provide estimates for >8500# F-250's that year. Let's set the MPG bar as high as possible. 4.10:1 final drive gears make fuel economy a bit more of a challenge.
Ats Turbo kit installed 1998-10-17 at 157980 miles. EGT and boost gauges installed 1999 June. Autometer oil pressure gauge, coolant temperature gauge, and voltmeter also installed at the same time.
Driving the Mustang when there's no snow on the roads and when I don't need the truck - Mustang installed 2007-07-23.
Chevron DELO 400 LE synthetic 5W-40 engine oil vs. 15W-40 petroleum oil - installed 2014-10-25.