Well, first off thank you for taking the time to truly read this. I live and take care of my uncle and he's disabled, a retired USMC vet. He has difficulties with computers and I myself take care of my uncle, remodeling his house.

I had no idea GM actually built an engine to last to around 300k lmao. Now, I'm more of a classic car guy , sbc or bbc, well they can last forever if taken care of, you see alot of older cars driving but it's sad to think these geniuses actually took who knows how long in designing a POS engine. Now, I bet a lot of funds went into developing that, more than just building an efficient engine, but my uncle’s 2012 Silverado only has at this point 84k on it.

I'm not the sharpest but when it lost 2.5 quarts of oil after an oil change and no oil light or engine light, but it doesn't leak out and doesn't smoke and I read they say it's from oil continuing to fill cylinders while engine is off, but wouldn't it smoke when exhaust heated up? But it's happened multiple times and I replaced the pcv valve built into the valve cover, god forbid ya make it changeable like most are. I may be wrong but the 5.3L engine is the same as 4.8L V8 but with different heads for most part, and nowhere could I find anything about the 4.8L V8.

A manufacturer doesn't want to take responsibility for their vehicle issues but they sure collect that money when a customer buys from them. But then issues arise with vehicle electronics or engine - it's sad they don't stand behind what they design or vehicle. And we honestly probably never have had an engine light even if it had an issue.

Thanks for reading and my apologies if my message was erratic and confusing. If I wouldn't have seen new recalls on so many vehicles but on Silverado, and Silverado used to be hellava truck? What happened GM f**, lol. Thank you and have a good evening.

Checked all the fluids before a trip. Oil couldn't tell on the spiral stick. Took to the dealer after trip and they said oil was low, only after I asked to check prior to changing. So now I know my 2012 Silverado LTZ 5.3L is using oil between a 4mo/4k oil change. Dealer never has said anything about oil usage or why is does it. Dealer maintained since new, according to dealer. I take to dealer for oil changes. Now I have to worry about my oil between changes and ask for the dealer to tell me the level prior to change. GM is going to lose a family of customers!

Update from Oct 11, 2018: GM wants me to take to dealer for check.

I have taken to the dealer for every oil changes and some other checks.

I want to know about the oil usage between an average of 2700 miles oil changes.

Engine uses approximately 3 quarts of Valvoline max life 5W-30 dex-os approved oil between 3000-5000 miles, when I change oil. Originally was throwing code that spark plug was fouled per dealer. I replaced all spark plugs with new ac delco plugs. Less than a month later it threw foul code again. Dealer proceeded to replace valve cover, citing Chevy bulletin that claimed it would solve problem. Has not fouled plug yet, but still using excessive amounts of oil. Now has 124538 miles, idles rough, and slow acceleration. I have to check oil at every fuel up just to make sure I don't go low. How can Chevrolet allow loyal customers to suffer with these problems?

I purchased a 2012 Silverado. My first oil change the truck didn't have a drop of oil in it. It burns 2 quarts every 3000-3500 miles. I have been doing oil consumption tests and finally the dealership removed that carbon from the engine which they stated only works 2 out of 10 times but its the first step before GM will let them rebuild the top end of the motor.

This issue stems from the fuel economy aspect of switching from 8 cylinder to 4 cylinder operation and there is blow by and the oil burns off. There are many people experiencing this and I don't understand why there has not been a recall to fix the issue considering it is prevalent on a specific motor GM produced.

Hard to find any company that stands behind their products anymore and GM is certainly one who doesn't unless you go through a ton of BS to finally get them to take responsibility for their worthless workmanship. I now have 42000 miles and still have issues and continue to do these dumb ass oil consumption tests until it meets their guidelines. What a crock. I'll never buy another GM truck.