Originally Posted by hunt4240dw
I would also look for any GMC Sierra Denali after 2007. The Denali package included the 6.0 engine. I may be doing this also if diesel remains so high. Once CNG is more available to the public, the GMC 6.x can be converted with a kit.
David, i have been watching the price of diesel for some time now and i don't see it dropping below the price of regular gas as it was. When the price of gas go's up diesel will do the same.
My co-worker is still talking about the LTZ that i had mention earlier and he plans on taking a trip to look at it. I just learn to day that GM 6.2 requires high test gas and it is rated at 18 mpg on the highway and it is rated at 400 HP but the price of high test is close to the diesel price.
From what i understand with my truck 2008 it was in the middle of a model change, and mine is the new model or body style the one before the change is called the "Classic" the frame and the engine was changed as well.
The 2007 model year had a 6.0 but i believe it was rated at 300 HP, in the middle of 2008 when the changes were made the 6.0 was increased to 367 HP......Check the HP rating on the 2007 Denali.