6.2

I have a 2013 Yukon Denali that possibly has a broken lifter or camshaft? It only has 49K miles on it, and has never been used for anything more than the daily commute and running errands. Has anyone else had this problem? If so, did you have to have the motor rebuilt or completely replaced...

'15 Sierra - What's your highway MPG? Let me know what your averaging in a 2015 4WD crew cab 5.3 and 6.2 on the highway only. Don't really care about city mileage. Make these realistic - you know, driving down the interstate at 70, 75, and 80 mph. I have a new 2015 5.3 4WD Denali. Getting...

Hey guys, I just picked up a 2011 Sierra Denali AWD with the 6.2, all stock. Im looking to do the basic performance upgrades (filter, tuner and exhaust). Any recommendations on what plug in tuners I should take a look at? Thanks

I've been looking at buying a new vehicle. I'm looking mostly at 2010 Chevy Suburban and '10 Cadillac EXT's. My father owns a 2008 GMC Sierra Denali and for the ease of it I have been considering buying his truck. In my research I've read a little bit about that engine having some issues...