Every one I ask about mileage that I see filling up around here says they lost 2 to 3 miles to a gallon since they went to ULSD. In my case that is also true. I have a 01 supercab with a edge programmer and BTM muffler and K&N and use to get 19 to 20 not towing on the highway. Now I get high 17 teens.
Towing MPG down down down
I have the truck listed below. Stock last year 13,500 fifth wheel I would get 11.5 going 67 on the highway. This year same highway same trailer but with all the mods listed I get a measley 9. Cant have this. Is it the T/S 6 pos? Ive actually had alot of trouble with this thing switching settings whenever it feels also. Time for DP Tuner. Morale of the story is I didnt want to spend the 500 for a DP so I bought this TS off ebay for 280. Mistake Now I'm gonna have a $780 chip. Oh brother. Any Ideas?
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