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As soon as the reflash 22 trucks show up with the higher towing ratings I’ll be sure to check out of the new diesel supplements and see if they mention the 5w30 spec

So who’s going to pay for it and make it public for all of us

Yep. I assumed it was their money grab at c5 but they haven’t released the official requirements to meet dexos D. The only Wierd thing I found is amsoil now sells 5w30 that “meets” dexos d Hths of 3.5

Yeah I just read his statement that said GM has an approved oil at this viscosity they aren’t marketing yet. As him referring to dexos D

Where have you seen they have a 5w30 dexos D? Just curious? I just wish we knew the requirements of dexos D.

M1 esp x2 0w20 508/509 approved and about 75ppm And 300 ppm boron

@sixinarow i welcome you to spend the next 3 weeks going through thick vs thin debates. Lol at the end of the day you have to decide for yourself whether you want to follow the manual or go on your own path. And even if I switched to esp 0w30 you bet **** well my receipt from my supplier still...

Hey so I’m about to my 5500 miles on esp x2 and I’ll be sending in another analysis. My truck has been worked about 50% of that. Hell the last trip to the in-laws we battled 20-30mph head winds and at 75 that’s basically like towing a trailer. It’s like clockwork. I use about .3-.5 in 5k. I’m...

Do you Olán on sending a sample when you change your oil Next? We sure need more 3.0l UOAS

I was waiting for one of these to show up here. Never fails. Thanks for your opinion

Don’t worry I will.

What truck is that? Looks totally different under the hood than mine.

Will do. You’ll love the engine. I have 2k more miles to do and I’ll sample and send it in. Frankly I may sample and not drain and wait for results. Another high iron and I’m going to run esp 5w30 or 0w30. Frankly I would go delo fa-4 5w30 or Castrol C3 but it’ll be easier to keep a proper...

My next UOA will go to Polaris or oil analyzers for a proper FD test. Will also see how the m1 esp 0w20 held up. But my next fill will be esp 5-30 granted I’m in mn and winter is almost here. It’s a garage baby in the winter and nearly never sits outside. I have a work beater for the salt ****...

Yep so if I don’t run Cenex roadmaster xl fuel then it’s a strict regimen of hotshots edt or archoil 6400. Occasionally powerservice as well. In mn we also run 20% bio so that’s cool. I have a very particular few stations I fill at and I always plan then best I can so i never get fuel at a...

It’s actually the first 5w30 they claim meets the dexos D standard. Surprising they say it meets but then mobil 1 says their esp 5w30 does not but their 0w20 esp does. Regardless looks like a good sample. And happy to see one with that oil.

In regards to oci. Sample and send in your oil. No better dictator than that. I’m sure your good to go 5-6k without any worry. Then sample and send in. Let the science tell you

So if we see trends of higher metal generation through the last 30% of a oil change or say in the 5-7500k mile range then we should ignore that? Or shearing of oil below the recommended grade when ran past 5k? Only time will tell but I’ve seen a handful of reports (every one posted on fb or...

Run 5k on the m1 and send it in to Polaris - they will use g/c for Fuel dilution. The high iron is a concern but we also havnt had any consistent UOAs past 15-20k. My most recent was 700-5k miles so 4300 with dexos D and that wasn’t that bad. My next from 5-10k went missing in the mail to...

My brain hurts. My next line of thinking of jumping up to a 30wt and hths of 3.0+ is that of course would correlate to higher pressures internally in the oil journals and such. So how does higher pressures from a a hths of 3.2 or 3.5 vs 2.6/2.8 effect the spray of oil from the piston cooling...