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View Full Version : GM 6.0 Mileage?????



DansBlown73Nordic
08-22-2005, 02:50 AM
What are you guys getting with the 6.0. What gear ratio comes in a HD 2500 pick-up? 4X4 that is....

dtr352
08-22-2005, 01:08 PM
2001 2500HD 6.0 4x4
Has factory limited slip and 4.10 gears and gets about 10 mpg. Different driver might do slightly better. It hurts but at 115000 miles it still tows like a new big block so you ignore the mileage.

77charger
08-22-2005, 05:29 PM
2001 2500HD 6.0 4x4
Has factory limited slip and 4.10 gears and gets about 10 mpg. Different driver might do slightly better. It hurts but at 115000 miles it still tows like a new big block so you ignore the mileage.
samea truck here i get about 13.5 all around driving and about 10-12 towing 21ft boat depending on how fast i drive,get about 9 towing 21ft toyhauler but have seen probably as low as 6 in a good strong headwind.

Raskal
08-22-2005, 09:31 PM
pretty much the same 10 /11 all the time

One Particular Harbor
08-23-2005, 11:44 AM
12.5 mpg lifetime average
9-11 around town
14-15 on the highway

rvrpig
08-23-2005, 12:48 PM
13 mpg with a 6inch lift and 35inchers....all the time no matter what driving.

kgt
08-23-2005, 06:38 PM
Most of our cust say that a 8.1 liter gets better mileage. 6 liters like there fuel.

DrewDown
08-23-2005, 08:51 PM
We have a 6.0 at work and the mpg is horrible. I drive a 1/2 ton with the 5.3 and get 17 mpg driving it hard

goneboatin
08-24-2005, 08:06 PM
I used to get 12.5 on the highway until I got a Wester's computer reprogram (tune), now I can get 15+ if I keep it around 70mph. If I run at 80+ mph I go down to the low 14's. It still sucks around town at 10.5 to 12 if I'm lucky.
But now with the tune, it took the doggyness out of it.

Bahner tunnel
08-30-2005, 06:51 PM
I have an 01 2500 HD 4x4 crew cab with a 8.1 /Allison auto and I get 9-10 mpg in town empty and the best of around 12 on the freeway with a 2500lb. boat in tow. It is pretty much a gas hog but has great power so F-it:)

riverracerx
08-31-2005, 09:27 AM
2003 Escalade 6.0 AWD w/ 345HP. (Lighter than your lifted HD trucks)
I get 14.5 everyday. As good as 18 on the way to Havasu (at 65-70mph)
It's for sale too.