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I scrolled through a few pages looking for another post on the issue with no luck, so I apologize if this has come up before. I have a 2021 Silverado 1500 Custom, 5.3L 6 speed. About 80k km on it. A couple months ago I had it parked on a bit of a hill outside my office, facing uphill. Probably had been sitting for a couple hours since I last drove it. I started it up and a big cloud of blue/black smoke came out of the tail pipes and smelled like burnt oil. Smoke cleared pretty quick and that was it. I didn't see this happen again for another few weeks, but once again, parked the exact same way as before, I started it up and a huge cloud of smoke and burnt oil smell. I had parked the same way lots of times in between both smoke shows. I haven't seen it do this since. I had it in at Chev today for an oil change and the tailgate recall and I told them about this. They had a red seal tech check it out. No signs of leaking valves, no codes thrown and he couldn't recreate it. They charged me $170 to tell me they couldn't find anything wrong except the oil level was low (but they didn't say by how much) but that it's normal for these trucks to burn 3L or so of oil every 10k km. They even had documentation from GM Canada backing that up. But just to be safe, they want to track the oil consumption and every 1000km, I have to go back to the dealership, let the truck sit for 15 min and then they check the oil level and log it. I'm in the last 20k km of my powertrain warranty so if something is going on, I want to get it dealt with before it costs me. Anyone experience something similar? My buddy suggested adding a catch can, but to also have the valves and rocker taken apart and cleaned out. This is way above my skill set and sounds expensive. I don't buy the "this is normal operation" argument because if it was, I would have seen it happening sooner. My driveway is level and I've never seen it happen when I start it at home, so I definitely think hill parking it is a piece of the puzzle.

Hey guys, I have a 2020 Silverado 3.0l Duramax. I'm looking for the gm filling procedure. I wasn't able to find it and was going to try a local dealership for it if this doesn't pan out. I know the temp needs to be brought up and gears cycled through, but I was hoping for an official document for it. If anyone has it I'd appreciate it.

Any ideas why Chevy Silverado won't start after replacing dead battery with a new battery?

AYYYYOOOO, So I have a 2016 Silverado 5.3L 1500 High Country with a K and N series 77 cold air intake and a Borla ATAK cat back Dual Exhaust and I am looking for the best/recommended tuner to go with.... Really I just want overall better drivability comfort and power, disable the speed control limit and AFM disable functions. After some research that I have done I have noticed multiple mixed reviews and could not decide which one to go with. Here is a list of the ones that were most talked about and was wondering if any of these would best suit my truck or if there is something else out there: Bully Dog 40417 GT Platinum Tuner DiabloSport 9245 Trinity 2 EX Platinum DiabloSport 7220 Predator 2 Platinum Superchips Flashpaq F5 Tuner Thanks in advance!!