2008 Avalanche purchased new 05/08. I take care of my vehicles. They cost too much money. Uses excessive amount of engine oil. Three months old, rear main seal replaced. Two years old, fan had to be replaced. Seven years old, dash is fracked and looks like crap, paint peeling, both quarter panels rusting and speaker replaced in drivers side door. Nine years, hvac fan replaced. Travel comfort love it. Next new vehicle 2018 F150.
Bought my '08 Z-71 with 35k miles in 2011. The clock now reads 162,xxx on the original engine and transmission. I've done quite a bit of hauling with the truck, but I've always been a stickler for maintenance. When I first bought the truck, the dealership rebuilt the top end of the motor under warranty to resolve a fuel consumption issue. Since then, I've replaced the AC compressor and condenser, both front wheel bearings and the steering gear. Other than that, normal maintenance.
I just rolled 158,000 miles on my 08 Avalanche. This was the best purchase I made. It was listed for almost 43K and I paid about 28K with all rebates and my fathers GM discount. Not bad. I can tell you knock on wood that I have not had any issues at all just the regular maintenance. I am a firm believer in how you drive and take care of your car is how you get paid in return. I always bought new vehicles and I have always owned them for at least 10 yrs or more. I do want to see If I can least put 400,00 on it before major issues turn up. It still looks show room and I do spiff it up with 20 in chrome wheels in the summer and I have a chrome hood shield in front. If some is interested in a used one. I would recommend but research the history before buying. It is just like anything else.
I purchased this 08 LTZ in early '10 with 16k on it. its pulled albeit over its rated capacity my boat to and out of the water without any issues ever. been on parts of the Rubican Trail that didn't have too big a boulders to get over. it now has over 130k still with no major issues. Dash cracked around 50k - JB plastic weld and vinyl repair patterning fixed that. Nav went out around the same time, thought it just needed new disc but just wouldn't read disc. $1600 to replace, thank you smart phone technology. Chrome started coming off door handles..was surprised to see my dealership just replaced them during last maint. one wheel sensor gone bad. one oil pressure sensor, one auto mirror retract motor gear. and maybe 3 sets of tires. gonna replace headlight covers pretty soon as they are now cracking from the vegas sun. Still seems to run and sound like it did when I first purchased it.