what kinda mpgs should a 6.5 get?
i know my 97 3500 auto 2wheel drive with 4:10 only getting 15 mpg and 8 mpg towing a 16,000lb 5th wheel and i can't seem to get any more then that and have done eveything i could just get that but now i hear ppl getting 18 to 21 mpg
between 18 and 20 with a C3500 single cab and 4.10s. the taller tires i put on helped the low gears on the highway
Read more: https://www.dieselbombers.com/chevy-...#ixzz15Kq2VAUg
Read more: https://www.dieselbombers.com/chevy-...#ixzz15Kq2VAUg
what size tires are you running and is your truck s/w or d/w


