zack birge
New member
So here's my situation, I bought my truck back in April. Was averaging 18-19 easily. I tuned and deleted it and it seems the max I can get out of it is 15-16 lately. I've tried different tire wheel combos and nothing. I'm wanting to hear experience with mileage from running the street tunes. I have only been running the race tunes and was thinking about putting my factory exhaust on and going back to te street tune.