Originally Posted by CKN
Originally Posted by Railrust
Originally Posted by AZjeff
You can turn DOD off but the parts are still in there and they've been working for 108k. Luck of the draw if he'll have any problems but good synthetic oil on conservative OCIs does seem to help. The only way to know they won't fail is to replace the DOD parts with normal stuff. Kits out there to do it. A guy at work has a 2007 Silverado 5.3, first year of DOD and the most likely to fail, he bought new now over 160k with no problems. He only short trips, OC is whenever he remembers, couldn't tell you what oil and filter was ever put in at the quicklube places and Wallyworld. Owners on silveradosierra.com have reported failures after turning DOD off doing short OCIs with good stuff. Point is no guarantee, he might run it another 108k if he does nothing or it might fail the week after he turns DOD off. There might have been some mechanical updates by 2010 making it more reliable.
CKN, your 2018 has an Ecotec3 motor that pretty much fixed the failures.
Edit: I thought ls1Mike did a delete and he posted while I was typing....
I have a 2018 and I'm on the Silverado forums all of the time...as far as I can see, they haven't fixed the lifter failures on the newer models. I personally haven't experienced it - hopefully never will - but others sure have. Unfortunately lots of problems on the newer trucks...injectors, torque converters, starters, AC condensers.
We must be on different forums (And I'm three specific GM truck forums)-I haven't seen ANY FAILURES (AFM parts) on the 2018-5.3s. So even if there are-it's not widespread.
This^^^^^^^^^^^^^^^The 2018 are pretty solid-there are some torque converter issues. But it's not widespread.