Met a local guy I'm trying to get to join the site...
just over 300k miles on his CUCV blazer and never any major problems... a few sets of injectors and religious maintenance is what he claims got him this far...
says he gets great fuel mileage too. for an 80 something truck I'd say that's a pretty good achievement.
Yes, like 1/2 the lightbulbs in the room that are still lit at the 1000 hour life test end. Odds are very good when you pull the engine down it's cracked and un-rebuildable. This is why the engine has been re-designed twice since GM stopped production.
Maintenance only gets you the life of bearings, rings, and other items. When the engine runs perfectly up till the cracks let loose.
Same claim is made of any engine esp. the Million mile Cummins rep that is rated at 500K before a overhaul. Some don't make 10K, 100K, etc. Some had core shifting and block cracks.
The point here is more Cummins engines last longer and move the curve as an average. So for 6.2 engines a good many of them died horrible deaths as complete scrap metal from getting too hot, inhaling their own glow plug debris, cracking heads, cracking the block, or simply the TTY HG bolts let the gaskets blow.
I will make the same claim of a 350 or 454 gas engine. Most can be rebuilt after the 200K+ expected life.
So again my point is it's hard to not blow a 6.2 and backing that claim up with the fact that The US Government had the 6.5 engine redesigned twice to eliminate engine killing design and GM bean counter shortcomings.
Does a 6.2/6.5 do ok? - yes. Exceptional or hard to kill can not be justified for that engine period. With the low replacement cost of parts vs. other diesel engines this really does not matter. Resale vs. other same year diesel pickups is low due to a combination of low power and the reputation, earned and deserved, for mediocre reliability. Sites like this help with the reliability angle and when it lets go we show you the way to cheaply replace the engine.
