05 LLY, CC, LB 94K miles, 15K hours, unknown age of injectors, runs great though.

In Alaska with temps in the -20 range, 15 driving approx 14 miles one way twice a day every day. (56 mph, if I drive 60 this drops to 13)

17 over a 85 mile drive with 3 hills over 8 degrees of upward angle. (67 mph)

This is with #1 Diesel, mixed with 2 stroke oil.

I haven't taken it on any longer road trips yet, and unfortunately all of our roads out of Fairbanks will encounter big hills.