2004 ISL
We have '04 Tradition with ISL(370) Cummins, F/L chassis(chassis date July '03). We are about 3900 miles into our Alaska trip with an MPG average of 6.3. In the C/G I met a couple with an '05 Traditio...
Forum Discussion
More likely than not, he has a better calculator than you. If it really matters get a new calculator.:b
