In reply to skierd :
ha! how in the world did you come across this year old thread? i sure hope OP has gotten a DD by now
That said, never buy an early teens deactivation GM 5.3. they have an oil consumption issue that at least up to a year ago GM couldn't figure out. you had to go to the dealer and have them track consumption for a few months until they would talk to you about it. that was probably all for people under warranty only, which isn't going to be an option