Add engine oil!!!

Antny · May 17

On 1/4/2023 at 4:46 PM, Pryme said:

Truck takes 8qts so wouldn’t it be a half quart?

Yeah. I misquoted. I typically add up to a quart between oil changes. I change the oil and filter with 8.5Qts.

MachWun · May 27

I've read through a lot of this long thread and am feel a lot of dread. I have a 2020 GMC Sierra 2500 Denali. The dealer put 6 quarts in the engine at 19,000 and I have since started burning oil. First time I took it in they checked for leaks (found none) and gave it back saying come back in 1,000 miles. Of course, once GM got involved, the dealer realized they did not conduct a proper oil consumption test. I am in the middle of one now and can see a huge shift in 'cover you ***' type of documentation. Likely because GM has contacted them about it.

Read the last order and you can smell the BS.

First return to dealer it was barely on the dipstick. Added 1.5 quarts (so they claim)
Second return is was not on the dipstick. Added 1 quart.
Noted evidence of towing. **NO STUFF!! Who drives a 2500 for pleasure? But I have not towed since early Fall, 1,000's of miles before the last oil change and consumption test.
They state on the order that 1 quart per 1,000 miles is acceptable. Assuming an oil change at 5,000 miles, and I lose 62.5% of my oil?? From driving 60% highway / 40% city?

Note the order has a quantity of 2 for quarts of oil. Why 2 if they only used 1?

I have had 4 Chevy and GMC pickups plus 7 other GM vehicles. If nothing further is done, I likely need to sell this very expensive truck. If I do, it will be my very last GM product ever.

Another JR · May 27

55 minutes ago, MachWun said:

I've read through a lot of this long thread and am feel a lot of dread. I have a 2020 GMC Sierra 2500 Denali. The dealer put 6 quarts in the engine at 19,000 and I have since started burning oil. First time I took it in they checked for leaks (found none) and gave it back saying come back in 1,000 miles. Of course, once GM got involved, the dealer realized they did not conduct a proper oil consumption test. I am in the middle of one now and can see a huge shift in 'cover you ***' type of documentation. Likely because GM has contacted them about it.

Read the last order and you can smell the BS.

First return to dealer it was barely on the dipstick. Added 1.5 quarts (so they claim)

Second return is was not on the dipstick. Added 1 quart.

Noted evidence of towing. **NO STUFF!! Who drives a 2500 for pleasure? But I have not towed since early Fall, 1,000's of miles before the last oil change and consumption test.

They state on the order that 1 quart per 1,000 miles is acceptable. Assuming an oil change at 5,000 miles, and I lose 62.5% of my oil?? From driving 60% highway / 40% city?

Note the order has a quantity of 2 for quarts of oil. Why 2 if they only used 1?

I have had 4 Chevy and GMC pickups plus 7 other GM vehicles. If nothing further is done, I likely need to sell this very expensive truck. If I do, it will be my very last GM product ever.

Make sure you hang onto that evidence that they billed you for two quarts but said they only added one in the oil consumption check records. Their credibility will be damaged by that if you get to arbitration or a lemon law case.