I've seen 30 with 315/70-16's on a leveled 02 lb7 xcsb/4dr.
Ran over 1000 mile trip from Des Moines to Branson Mo, over to Topeka Ks, and back to DM with these 315's on stock wheels, and hand calculated at around 34 mpg. I used less than 2 tanks of fuel the whole trip. First tank had 836 miles on it..
When I got the truck it was tuned for a Mn DOT class 5 vehicle.
When I got it, it had rotella t6...and Allison Tranny fluid - got 17-19..maybe 21 on the hiway, on a good day.
I Amsoil'd EVERYTHING, and on fresh oil and tranny fluid..easily see 24-26 daily for about 12k till the oils start breaking in.
I currently run 33x12.5 Wild Country-MTX's on 17in steel wheels..and normal 2 lane hiways, and city...23-24 mpg.
Hiway(4 lane) - 26-28 :woott:
Amsoil oil - series 3000 5w-30 - added 3 mpg's
Amsoil Tranny fluid is the TES295 rated - added 5 mpgs
Amsoil 75-90 dif oil - added 2 mpgs
Amsoil made a huge difference in the operating cost of this truck.
I believe the tune is about a 80hp with Transmission assist braking..Don't quote me on that...
How do you set up a signature here...?? I have a few upgrades I'd like to list off.
Ran over 1000 mile trip from Des Moines to Branson Mo, over to Topeka Ks, and back to DM with these 315's on stock wheels, and hand calculated at around 34 mpg. I used less than 2 tanks of fuel the whole trip. First tank had 836 miles on it..
When I got the truck it was tuned for a Mn DOT class 5 vehicle.
When I got it, it had rotella t6...and Allison Tranny fluid - got 17-19..maybe 21 on the hiway, on a good day.
I Amsoil'd EVERYTHING, and on fresh oil and tranny fluid..easily see 24-26 daily for about 12k till the oils start breaking in.
I currently run 33x12.5 Wild Country-MTX's on 17in steel wheels..and normal 2 lane hiways, and city...23-24 mpg.
Hiway(4 lane) - 26-28 :woott:
Amsoil oil - series 3000 5w-30 - added 3 mpg's
Amsoil Tranny fluid is the TES295 rated - added 5 mpgs
Amsoil 75-90 dif oil - added 2 mpgs
Amsoil made a huge difference in the operating cost of this truck.
I believe the tune is about a 80hp with Transmission assist braking..Don't quote me on that...
How do you set up a signature here...?? I have a few upgrades I'd like to list off.