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I have a question for those of you who change or periodically check your oil...

Have you guys noticed any oil consumption issues with the 2.8 ? If so, how much?
 

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I have a question for those of you who change or periodically check your oil...

Have you guys noticed any oil consumption issues with the 2.8 ? If so, how much?
I've had mine since Apr 2016. I'm around 17.5k miles and have been through both "free" oil changes at the dealer. I have noticed that I am consuming at least a quart, if not more after about 3-4K of changes. Personally I feel like that's a lot considering it's brand new. I'm also clueless as what's special about the dexos2 oil gm recommends. I'm thinking about switching to 10w-40 rotella t at next oil change.
 

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I've had mine since Apr 2016. I'm around 17.5k miles and have been through both "free" oil changes at the dealer. I have noticed that I am consuming at least a quart, if not more after about 3-4K of changes. Personally I feel like that's a lot considering it's brand new. I'm also clueless as what's special about the dexos2 oil gm recommends. I'm thinking about switching to 10w-40 rotella t at next oil change.
if you don't use a synthetic blend that fits the parameters set by gm, they could void your warranty
 

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Discussion Starter #8
I've had mine since Apr 2016. I'm around 17.5k miles and have been through both "free" oil changes at the dealer. I have noticed that I am consuming at least a quart, if not more after about 3-4K of changes. Personally I feel like that's a lot considering it's brand new. I'm also clueless as what's special about the dexos2 oil gm recommends. I'm thinking about switching to 10w-40 rotella t at next oil change.
That really sucks. I've heard from friends and family about new cars they purchased, from different manufacturers that have oil usage issues (Chevy 5.3L, Subaru, Mini and even Toyota). Newer, modern engines with tight tolerances should not use any oil. Period. I was hoping this current 2.8 would be a quality diesel. You are the first person to post of any usage.

Any Diesel with a DPF will require Low-Ash synthetic oil. This minimizes the ash load coming from PCV recovery system. If you have any emissions failures of the DPF system the dealer may try to blame your oil.

Mobil 1 Delvac ESP is cheap, readily available and is designed for diesels equipped with DPFs. https://www.pepboys.com/product/details/9607363/00774
 

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the chevy 5.3 doesn't have an issue, it is actually designed to use oil. I don't know why, I just know it is. I don't think the 2.8 is though. mine hasn't used any that ive noticed, but I don't check it often enough to really notice if it was using a little
 

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I recently changed my oil with 19k on the odometer. Today, after about 1k miles, I checked my oil and it is already a quart low. I haven't had any other issues with the truck but this does not seem to be normal. Anyone else checking their oil level frequently and noticing early consumption?
 

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My Colorado truck uses about 1/2-1 quart every 2k miles. I dropped 1/2 down dipstick during 2000-2500 miles. This seems like a lot yea. The dealer knows about it and is doing an oil consumption test formally. I don't think this is normal but they did tell me per GM it's allowed 1 quart every 2000 miles. Sucks
 

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I just got back from dealer. Results of consumption test - 1/2 quart every 2k miles. Apparently on this dipstick the hash marks represent 1/2 quart not one and the tech verified.

Anyone who has consumption problems please open a case with GM so they can track. Supposedly I'm only one in nation they have heard of :/

Jdpenfiefld please report to them. And anyone else!
 

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I would not use anything but a Dexos 2 , most important, Dexos2 is a "low ash oil" very important to protect your "particulate filter"

I have just under 8000 miles , 1 oil change, no oil consumption at all.
Pennzoil Platinum Euro L 5w30 - the lowest ash content of any oil we carry
 

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Yea. I was researching...what about VW spec 507 oil? It supercedes 504, I think. I have a bunch of it from selling back the TDI. I wouldn't do it not under warranty though. Maybe after warranty haha. But not worth risking the warranty. It's also low ash and all that. But the specs are slightly different. DEXOS2 is hard to find. One day when the exhaust mysteriously falls out of the truck I could probably use dexos1 (much cheaper and more common) or even common synthetic diesel oil.

I may try Pennzoil or Castrol on the third oil change, after my two free ones. Sigh.
 

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Still breaking mine in at 3300 miles w/no drop on the dipstick yet.

After the two dealer freebies I probably be switching to the Mobil1 ESP 5-30 formulated with the particulate filter requirements in mind (its also what their 'product finder' recommends for the Z71 diesel).

There seems to be a lot of oils geared for just 'diesel' / diesel w/turbo / diesel w/low sulfer+emssions, but the Mobil 1ESP claims to cover it all - however I still have time to keep looking...
 

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the chevy 5.3 doesn't have an issue, it is actually designed to use oil. I don't know why, I just know it is. I don't think the 2.8 is though. mine hasn't used any that ive noticed, but I don't check it often enough to really notice if it was using a little
I don't know where you got your info from but the newer motors are NOT designed to use oil nor should they! The issue mainly with the 5.3 and 6.2 and even the 3.6 gm engines are they use that dumbass AFM or DoD crap. Also with all the new epaulets regs they are reintroducing oil back into the intAkers through the pcv system the best thing to do is to add a catch can and delete the AFM/DoD crap . As far this 2.8 diesel consuming oil I can see that it could but a catch can and delete should solve it
 

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I don't know where you got your info from but the newer motors are NOT designed to use oil nor should they! The issue mainly with the 5.3 and 6.2 and even the 3.6 gm engines are they use that dumbass AFM or DoD crap. Also with all the new epaulets regs they are reintroducing oil back into the intAkers through the pcv system the best thing to do is to add a catch can and delete the AFM/DoD crap . As far this 2.8 diesel consuming oil I can see that it could but a catch can and delete should solve it
I got my information from working in a GM service department as well as many GM trainers. theres a reason the 5.3L holds the same amount of oil as the 6.2L. AFM wouldn't be the reason that any of them burn oil since it cuts all fuel and oil from the cylinder when it cuts power. I'm not familiar with the 6.2 or 3.6 burning that much oil, but i can tell you that the 5.3 has burned a little oil since the very beginning.

im not saying that they are supposed to be burning a ton of oil. if they are burning over half of you oil, you obviously have a problem. im just saying that there isnt a single 5.3L that doesnt burn atleast a little oil.
 

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also worth noting, i think you would be suprised to know just how many newer Engines (motors don't burn anything) are designed to burn oil.
I.E. VW Eos is designed to burn 1 quart every 2k kilometers
 

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I got my information from working in a GM service department as well as many GM trainers. theres a reason the 5.3L holds the same amount of oil as the 6.2L. AFM wouldn't be the reason that any of them burn oil since it cuts all fuel and oil from the cylinder when it cuts power. I'm not familiar with the 6.2 or 3.6 burning that much oil, but i can tell you that the 5.3 has burned a little oil since the very beginning.

im not saying that they are supposed to be burning a ton of oil. if they are burning over half of you oil, you obviously have a problem. im just saying that there isnt a single 5.3L that doesnt burn atleast a little oil.

Well I have owned plenty of 5.3s and most hardly never burned any oil, only after they started implementing them on after 07 on trucks! I know that I have done several DoD delete kits along with VVT delete kits, and once done this magical thing happened...no more consumption of oil! So to say that it has nothing to do with that system is wrong I've done over 7 delete kits now and they all no longer consume oil.

GM knew that when they built this Gen IV LS that it had this issue so much so that they started a oil monitoring program and would band aid fix the issue with new top ends! There is no reason for ANY motor to consume oil. But yes I do know there are other OEMs like Subaru and BMW who actually have high oil consumption rates, but that doesn't mean it's suppose to!
 
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