So i have a 99 Durango 4x4. 5.9 it has now 227k...i have no real mods other than 33/12.5s on stock rim...no lift. Its my daily driver regular Vegas traffic with highway speeds. I off road usually 2 -3 times a week. "Long way to work" i call it lol.
Im seeing consistent 12.1 mpg. Id like to raise that...so i know lots of things to do but the biggest i can think of is tuning. Is it even work spending the money on a tuner for my stick vehicle. Ive read SCT can have 3 tunes. Would it give me and MPG gain on a stock vehicle if the SCT can do anything at all to my stock durango. Id like to know b4 i track one down and a tuner.
I'm guessing that you have the 3.92 gears with the 5.9. The only real way to get better mileage would be to change those to a more "highway friendly" gear set, say 3.55, maybe the 3.23.
Well like i said if i could be in the dirt i would so i do need to do something with my gearing after i finish off this tranny. Im 5.9 stock but i have 33/12.5/15 on it so tranny might have a big impact on mpg...i put the 33s on april or march i was at 13.1 now ivw watched it slowly drop to 12 even. So im not sure if the mpg thing is finally catching up or if i have other issues...but i wrench full time so when i start my truck it fires up no hesitation and when off trail overlanding in and out of washes and hill easily 50ft plus i get no fuss. When im done put it in 2 and drive to work so issues have to be issues for me to wrench in this weather lol
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Dakota Durango Forum
1.4M posts
50.4K members
Since 2003
A forum community dedicated to all Dodge Dakota and Durango owners and enthusiasts. Come join the discussion about modifications, troubleshooting, towing capacity, maintenance, and more!