Poor life with Mobil One?

[Garak]

Originally Posted by OilUzer
That's a faulty algorithm for such an expensive car! Oil doesn't go bad sitting especially that quickly. I know people with Corvette who don't drive in winter at all and change oil every 2 years. Sports car don't need olm. They should put other gadgets instead like oil temp or oil pres. or trans temp, etc. I prefer analog clock over olm

It's not really faulty. If the OEM wants you to change annually despite mileage, that's the way to accomplish it. Now, whether or not it really needs to be changed annually is another matter altogether. The fault isn't in the algorithm, though, but perhaps in the premise going into it.

 

[4WD]

Originally Posted by SilverFusion2010
Originally Posted by 4WD
Watch the calcium ...
enough stress on 6 rods now


Good point, have to find the SN+ PCMO version of SAE 30

The 0w-40s seem to do very well in the 3.5


The quietest in mine was 0w40 with 5w40 a close second … 0w40 was cheaper …

 

[madeej11]

Originally Posted by dave1251
Funny fretting about the Ecoboost. Most are ran on nothing but bulk oil from a oil change sale and the cheapest gas.

How could anyone know what those hundreds of thousands of Ecoboosts are run on? Unless you personally changed the oil and filled up the gas tanks on all of them.

 

[wemay]

Originally Posted by madeej11
Originally Posted by dave1251
Funny fretting about the Ecoboost. Most are ran on nothing but bulk oil from a oil change sale and the cheapest gas.

How could anyone know what those hundreds of thousands of Ecoboosts are run on? Unless you personally changed the oil and filled up the gas tanks on all of them.


Because most people change oil at the dealership and will opt for the cheapest gas allowed in the manual.

 

[madeej11]

Your statement holds about the same weight as Dave1251's.

 

[wemay]

You're too kind, madeej11.

 

[cbpat1]

Well, it seems to be on a little bit of a better trajectory here lately. I have now gone 814 miles since I changed oil and I show 75% on my OLM. It was 83% with only 320 miles. I'm confused, but, like I say, things do appear to be getting somewhat better. As long as I get at least 5k OCIs I will be happy, because that's my goal to begin with.

 

[anndel]

Originally Posted by cbpat1
I have a 2018 GMC Acadia, and a 2018 Chevy Tahoe. I changed the oil in the Acadia at 4830 miles. The oil life meter in the car said I had 37% oil life left when I changed the oil using Mobil One 5w30, what the manual calls for. I have only put 320 miles on since I changed oil and it shows I have 83% oil life left. That means I've used 17% of my oil life in just 320 miles. Meanwhile, I changed oil in my Tahoe using Pennzoil Platinum 0W-20 at 4020 miles and now have 4658 mile, or 638 miles since I changed oil and it shows I have 96% oil life left. I haven't driven either vehicle any differently, they both have been driven mostly in town, not highway driving. Why is the Acadia showing it having lower life expectancy on the oil than the Tahoe is? I know that the Pennzoil Platinum can't be that much better than the Mobil One is? Any ideas, or is this something that I shouldn't be concerned about?

I also noticed that when the oil was changed in both vehicles, that the engine seem to quiet down a little bit over the original oil that came in the vehicles.


Ignore that "idiot" light. Just go with time or mileage. In your case go with time whatever the owner's manual states since your still under a new car warranty.