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Went to my dealer to get a couple qts of oil before a short trip. Level was about 1/3 up the dip stick so I wanted to have some on hand if it dropped any. Less than $8 per qt for the acdelco Dexos D. Cheaper than online.
 
I have confidence they will because when I took mine in for the first one they drained the oil then realized they didn’t have any on hand. Of course this was a Saturday morning so I got a loaner until Monday. The kicker was I gave them my vin a week before so they’d have the right oil.
 
i put a 0w20 ultra from pennzoil big mistake for 3,000 miles.. what do you think the the damage is going to be ?
it said dexos on the oil cap and the ultra is a step above the platinum wich is dexos approved but hell i screwed up on that one .. any insight is welcome..
 
i put a 0w20 ultra from pennzoil big mistake for 3,000 miles.. what do you think the the damage is going to be ?
it said dexos on the oil cap and the ultra is a step above the platinum wich is dexos approved but hell i screwed up on that one .. any insight is welcome..
Hopefully you have drained it out and put in the proper oil spec as step 1?

There is no way of knowing what/if any real/lasting damage was done; it would likely take a ton of miles/years before a problem arose due to it anyway.

I wouldn't worry about it to be honest; they are at least both 20 weights, and Ultra is premium stuff. It definitely protected your bearings, more SAPs then what is recommended but it was very temporary run.

I assume the engine sounded normal running it? How did you randomly come to know it was an issue, this thread or?
 
I don't post much here anymore due to the LM2 bashing and other BS from members but with owning 4 Duramax trucks oil and filters are a huge money item. The oil & filter prices I see listed in this thread are high so I thought I'd pass this along.

LM2 Oil: ACDELCO 109277 dexos Diesel; SAE OW-20; dexosD; Full Synthetic oil can be had at RockAuto shipped including tax for about $5.50 a quart for 24 quarts or more. AC PF66 filters are around 5 bucks shipped each. I can't find anyone to get near these prices.
 
I don't post much here anymore due to the LM2 bashing and other BS from members but with owning 4 Duramax trucks oil and filters are a huge money item. The oil & filter prices I see listed in this thread are high so I thought I'd pass this along.

LM2 Oil: ACDELCO 109277 dexos Diesel; SAE OW-20; dexosD; Full Synthetic oil can be had at RockAuto shipped including tax for about $5.50 a quart for 24 quarts or more. AC PF66 filters are around 5 bucks shipped each. I can't find anyone to get near these prices.
I get oil and filters, in bulk, from RA once a year too.
 
I'm pretty sure within a year or so there will be more DexosD oil and filters on the market. Just like tires, the choices will increase as more of them get on the road and demand rises...
We can survive a year with OEM till then....
 
IDK, this truck has been out for far longer than 1 year, and there should be other options by now. They're already on their third model year for the 3.0. GM just doesn't want to share the customer's business. There are two DexosD oils but GM only lists 0W20. The other is 5W30 which has a higher HTHS rating. Amazingly enough, the stock 5W30 Dexos2 for the Colorado looks like it meets the DexosD rating. The Amsoil Syntheitc Diesel 5W30 oil covers both the Dexos2 and DexosD ratings (per Amsoil). Since the 2.8 had two oils (5W30 and 5W40, which I used during the summer for towing without issue), I'm really leaning toward replacing the 0W20 with the 5W30 Dexos2, even if it's only for a few months.
 
Seems like the right place to ask this question. Long story short, I went to get my oil changed for my 2021 3L I6 Silverado Duramax and they emptied the oil and then realized that they did not have the right DexosD approved oil. They did however have the Valvoline European Full Synthetic 0W20 for Gas and Diesel engines. I have tried hard to find a difference between this oil and the Mobil Super 3000 XE2 oil that is "DexoD Approved" and they seem to be made and approved for all of the exact same things except the Valvoline does not have the DexosD tag on it. Question I have is this, should I get another oil change or am I fine? Here is the link to the Valvoline oil they used. Again, the back of this quart and the Mobil 1 quart are saying the exact same things in terms of certifications! Hate to waste money but happy to do it if my new truck is in danger.

 
It may be just me, but before I'd turn the keys of this vehicle over to anyone for an oil change, we would assure that all correct materials were available and well aware of proper use before commencing...Personally I'm going to put my kit from amazon in the back seat when I go in for my free change as a backup. I also check the level and the receipt against GM correct oil and filter part # in the lot before ever leaving. Simple things that confirm and fix all issues.....
 
What are the thoughts on the recommended 0w-20 oil for this motor? Seems awfully thin to me, but I'm no expert or engineer.

Is it to get the MPG's but will wear early or will this be good for long term?
I think GM hired Mechanical and Fluid Engineers to determine what grade and weight of oil should be in yoru engine. I would never deign to second guess them in their area of expertise.

Just my .02
 
Worth knowing…Just bought three 6 qt boxes of Mobil 1 0w-20 ESP X2 which is Dexos D approved for less than 8.00 a qt from Summit Racing. Doubt if it can be bought much cheaper than that. The price of this oil will only go up….may want to stock up!
 
I do see that…. But a lucky sidebar for me is that the mobil 1 ESP X2 is also good for my new Jaguar I 6 engine….and I got free shipping… Just nice to have it around if there are issues in the future. Seeing shortages on filters too…!
 
Local GMC dealer 10.00 a qt..... Local Cadillac dealer 12.50 a qt ! No thanks !
 
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