BREAKING: GM is officially recalling the L87

[Vladimir2306]

The DUAL stage oil pumps do not command the increase in oil pressure until around 3000 RPM where these engines rarely operate unless accelerating on to an on ramp at a pretty brisk pace or passing at a pretty good rate on the highway. The 5.3l benefits from the SINGLE stage oil pump and has more oil pressure at lower RPM then when compared to the 6.2l with the DUAL stage oil pump.

How come they don't increase the pressure to 3000? It increases everything. As soon as you raise the revs a little above 1000, the oil pressure immediately becomes in the middle of the scale, which is equal to 400 kPa, and if you raise the revs above 3000, the pressure will rise even higher, to about 430-440 kPa.

 

[Vladimir2306]

Used oil analysis

O, Thanks a lot

 

[Vladimir2306]

This “new” 2024 GMC Yukon XL Denali is a little over a year old. It has just over 7,000 miles now. It is part of the GMC Recall for possible engine rod bearing failures. They are now recommending changing the OEM recommended oil from a 20 grade to a 40 grade, specifically 0W-40. If the original engine “passes” the test then the engine does not need to be replaced, rather the owner is to use 0W-40 oil instead. If the engine has to be replaced then the original 0W-20 oil is to be used in the “new” replacement engine.

I did not know about the recall until I reached around the 4,000 mile mark on the truck. I ran the OEM oil for 2,000 miles then got a UOA (drawn from the oil stick tube). I changed the oil filter at that time to a Wix oil filter. The OEM oil was run another 2,000 miles, total 4,000 on the truck and the oil. This was the second UOA.

I changed the oil for the first time at the 4,000 mile mark to Renewable Lubricants 0W-20 oil and the filter was changed to a Motorcraft oil filter left over from my Lincoln Navigator days. I opened up the Wix filter and felt the debris was lower than normal for the milage. I was happy with this engine and felt it would last well. The engine used no oil.

I ran another 2,000 miles and got a UOA from the oil dip stick tube again. I got another UOA when I changed this 0W-20 RLI oil at the 3,000 mile mark, 7,000 total miles on the truck.

The oil now is bio-based RLI 0W-30. I got a UOA after just 100 miles, 7,100 miles on the truck.The object was to calculate the residual oil in the engine after an oil change. In any case, no indication from UOA that my engine is hurting.

ali

View attachment 463637

To be honest, I don’t really understand why it’s necessary to do an oil analysis so often?
Well, by the way, judging by the analysis there is no contamination of the oil with fuel, 1.5% is not significant at all

 

[22BlackDenali]

This “new” 2024 GMC Yukon XL Denali is a little over a year old. It has just over 7,000 miles now. It is part of the GMC Recall for possible engine rod bearing failures. They are now recommending changing the OEM recommended oil from a 20 grade to a 40 grade, specifically 0W-40. If the original engine “passes” the test then the engine does not need to be replaced, rather the owner is to use 0W-40 oil instead. If the engine has to be replaced then the original 0W-20 oil is to be used in the “new” replacement engine.

I did not know about the recall until I reached around the 4,000 mile mark on the truck. I ran the OEM oil for 2,000 miles then got a UOA (Used Oil Analysis) (drawn from the oil stick tube). I changed the oil filter at that time to a Wix oil filter. The OEM oil was run another 2,000 miles, total 4,000 on the truck and the oil. This was the second UOA.

I changed the oil for the first time at the 4,000 mile mark to Renewable Lubricants 0W-20 oil and the filter was changed to a Motorcraft oil filter left over from my Lincoln Navigator days. I opened up the Wix filter and felt the debris was lower than normal for the milage. I was happy with this engine and felt it would last well. The engine used no oil.

I ran another 2,000 miles and got a UOA from the oil dip stick tube again. I got another UOA when I changed this 0W-20 RLI oil at the 3,000 mile mark, 7,000 total miles on the truck.

The oil now is bio-based RLI 0W-30. I got a UOA after just 100 miles, 7,100 miles on the truck.The object was to calculate the residual oil in the engine after an oil change. In any case, no indication from UOA that my engine is hurting.

ali

View attachment 463637

I recently did an oil analysis on my 22 Yukon (60k miles), prior to taking it on a family trip towing 7000 lbs through mountainous terrain for 10 hrs. Was happy to see that oil came back with no concerns as well. Go figure.

 

[headwest]

I recently did an oil analysis on my 22 Yukon (60k miles), prior to taking it on a family trip towing 7000 lbs through mountainous terrain for 10 hrs. Was happy to see that oil came back with no concerns as well. Go figure.

What engine please?

 

[Z15]

Oil Analysis Explained

Oil analysis is a routine activity for analyzing oil health, oil contamination and machine wear. Read about oil analysis tests, interpreting oil analysis data and more.

www.machinerylubrication.com

 

[22BlackDenali]

What engine please?

L87 6.2

 

[ENTX]

Just wondering if the dealers are now equipped to handle this recall. When I called back in early June, they weren’t ready yet. Has anyone taken their truck in for this recently? Thanks!

 

[22BlackDenali]

Just wondering if the dealers are now equipped to handle this recall. When I called back in early June, they weren’t ready yet. Has anyone taken their truck in for this recently? Thanks!

I was directed to stop inquiring until I get the "2nd letter" from GM, so that's what I'm doing. It's been a couple months since I've had contact with my dealer.

 

[JTGZ71]

Just wondering if the dealers are now equipped to handle this recall. When I called back in early June, they weren’t ready yet. Has anyone taken their truck in for this recently? Thanks!

There are a number of folks who have posted on here that have had the recall inspection completed at their dealer (and most seem to have passed inspection, of those who have posted). So, I would assume that the majority of dealers are equipped to handle the inspection procedure at this point, and are doing so, albeit on a staggered basis as directed by GM. I'm not one of those, BTW, as I've only gotten the initial letter from GM. Just commenting on what I have read on this thread.

 

[Silverado4x4]

Thread 'L87 info' https://www.tahoeyukonforum.com/threads/l87-info.155380/

 

[KMeloney]

Just wondering if the dealers are now equipped to handle this recall. When I called back in early June, they weren’t ready yet. Has anyone taken their truck in for this recently? Thanks!

No second letter for me yet.

 

[Z15]

No second letter for me yet.

Think about all the others in this recall, can't do them all in one week.

 

[KMeloney]

Never said you did. IMO, again, the upfront and ongoing costs are TOO MUCH. Add this engine problem in there and it can make some of the owners crazy and cause them to post REPEATEDLY about the same thing, over and over again. IMO, I don't buy new. Too much of a loss, right off of the lot. I buy something that has whatever problems documented already and I can make an informed decision. Hard to make informed decisions on new new vehicles.

You're going to have to look in the mirror on this one, 'cause you've repeated these same sentiments about buying new vs older vehicles over and over again, and in a thread where that kind of Monday-morning-quarterbacking is especially unhelpful.

 

[zbad55]

Just confirmed how this recall affects the value of my Denali, went to a Cadillac dealer to inquire on a 2025 Sport Platinum. Asked for a trade in value on my 2023 Yukon Ultimate with only 20,000 miles and they came back with a price of $69,000. They also showed a Carvana estimate of $62,000 for a comparison., I was estimating a trade in value on the low end of about $72,000 up to $75,000. They explained they offered lower because they are having a hard time from GM to approve the recall testing which could take over a month. They also can't sell it then until a resolution of this recall and then if this needed a new engine it would sit on the back lot for months. So now we owners have a rig with a major recall, we are getting hit with loss of value. Just for another shot I will take it to another dealer to find out what their offer is.

 

[07Burb]

Just confirmed how this recall affects the value of my Denali, went to a Cadillac dealer to inquire on a 2025 Sport Platinum. Asked for a trade in value on my 2023 Yukon Ultimate with only 20,000 miles and they came back with a price of $69,000. They also showed a Carvana estimate of $62,000 for a comparison., I was estimating a trade in value on the low end of about $72,000 up to $75,000. They explained they offered lower because they are having a hard time from GM to approve the recall testing which could take over a month. They also can't sell it then until a resolution of this recall and then if this needed a new engine it would sit on the back lot for months. So now we owners have a rig with a major recall, we are getting hit with loss of value. Just for another shot I will take it to another dealer to find out what their offer is.

Or sell outright? You'll always get raked over the coals when trading in a vehicle.

 

[BigdawgR6]

My rig was in the shop for some warranty work on a couple other issues and an oil change. While in the shop I received the first and second letter. I asked the manager if I could bring the Yukon back on my next oil change and they said that was fine.

 

[vcode]

Just confirmed how this recall affects the value of my Denali, went to a Cadillac dealer to inquire on a 2025 Sport Platinum. Asked for a trade in value on my 2023 Yukon Ultimate with only 20,000 miles and they came back with a price of $69,000. They also showed a Carvana estimate of $62,000 for a comparison., I was estimating a trade in value on the low end of about $72,000 up to $75,000. They explained they offered lower because they are having a hard time from GM to approve the recall testing which could take over a month. They also can't sell it then until a resolution of this recall and then if this needed a new engine it would sit on the back lot for months. So now we owners have a rig with a major recall, we are getting hit with loss of value. Just for another shot I will take it to another dealer to find out what their offer is.

That is a good price from what I found on-line. Ultimates with 20-30K miles are going for $74-76K.

 

[WalleyeMikeIII]

Just confirmed how this recall affects the value of my Denali, went to a Cadillac dealer to inquire on a 2025 Sport Platinum. Asked for a trade in value on my 2023 Yukon Ultimate with only 20,000 miles and they came back with a price of $69,000. They also showed a Carvana estimate of $62,000 for a comparison., I was estimating a trade in value on the low end of about $72,000 up to $75,000. They explained they offered lower because they are having a hard time from GM to approve the recall testing which could take over a month. They also can't sell it then until a resolution of this recall and then if this needed a new engine it would sit on the back lot for months. So now we owners have a rig with a major recall, we are getting hit with loss of value. Just for another shot I will take it to another dealer to find out what their offer is.

That is a garbage excuse to lowball you. Because the facts are this:
1) If they take it on trade, it becomes a dealer inventory vehicle, and those go to the top of the queue for recall processing
2) Since they are a GM dealer, they already have the equipment and know how to perform the inspection, have access to the parts (which in most cases is 8 quarts of 0W40, an oil filter, and an oil fill cap). So they can execute the recall the day they take it on trade.

A solid negotiating technique you could use would be to ask them to "perform the inspection procedure right now, and if it passes, then you have alleviated your concerns and we can talk seriously about the Sport Platinum"

 

[Z15]

The dealers goal to to buy low and sell high. I traded in my 2021 Loaded Sierra Denali and the value between 2 different GMC dealers was over $7K with, in a week. $35K at one dealer 42K at another. One dealer (low baller) took my truck and left me with salesman, other dealer invited me to tag along. BTW, the dealer who I bought from turned my truck for $2500 profit in less than 2 weeks.