What kind of mileage are you guys getting at 75mph on a stock setup???

 

stock before anything was broke in, i was getting 16-17mpg on the highway. it was also winter time so the winter diesel hurts mileage a little bit

 

Stock with 5,000 miles just got average of 17.5 on mostly highway @70 on the last tank by the overhead. Was 18 the first half of the tank, then I had some 90 mph stretches on the second half of the tank.

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I should add that I was surprised with this tank. The same trip has averaged 14-15 on the overhead this winter, so maybe the fuel is factoring in or just the low miles????

 

i ran mine though the summer stock everything and on the highway avg 70 i was getting around 17.5 and that was when it was brand new had like 2000 miles on it

 

mine always ran around the 17 range, except winter, down to 15.5-16 mpg, about 70,000 on it now.

 

22 at 70, 29 at 55. 126,000 on engine. 2wd with 5 people in the cab.

Don't know if it's relative to the heavier 4WDs though.

 

16@75 it get's the best at 65 which is only about 17.5, where I live the elevation is about 6000 feet so that probalay dosen't help any

 

Going by the overhead (haven't checked accuracy yet) on a 300 mile trip I took today, with the cruise set at 65 the whole time with the exception of about 30 miles off the highway I averaged 19.8, according to the overhead. I am going to fill the truck again tomorrow and hand calculate it.

2008 stock 6.7 auto tranny 2500 4x4, odo now has about 1800 miles on it.

 

Wow, and that's not even broke in yet.

 

thats your guys tale; i sit on mine, my truck stock at 75 mph going from maryland to tennessee and back got 14.2 hand calculated and my overhead said 17.6 when i finished the trip. that was with an intake and ts mp-8 otherwise it would have been less. plus for you guys with 5.9s remember these 08's have a dpf and egr which totally ruins fuel milage