i have a 07 chevy 6.0l. new body. in 6 months it has had 2 transmissons in it with it being in the shop for 4 other different powertrain issues. it gets horrible gas milage. off a 26 gallon tank i get about 180 miles to a tank when only towing a 6x10 trailer with a 60 in turf tracer on it dailey. its horrible on gas i probably will not get one ever again. 8k on gas for an average of 15k miles a year? no thank you.