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All diesel oil is looking to be SN rated
The SN rating appearing on the label on the back of diesel oil seems to be a new thing not affecting just rotella.
Shell Rotella T4 15w-40 Now SN Rated
- Thread starter adam8833
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All diesel oil is looking to be SN rated
The SN rating appearing on the label on the back of diesel oil seems to be a new thing not affecting just rotella.
4WD
$50 site donor 2024
Think it was SN Plus where they got serious over LSPI - seems most things should be able to hit that when even this is SP …
I've been keeping tabs on diesel oil very much & I can tell you that CK-4/SN is nothing new. Yes, some companies are late to the party.
It's harder to compare a 30 grade gasoline only SP rated oil to diesel CK-4. That's not entirely fair. There are different rules & it is different specification & manufacturer's requirements of the oil. Eventually we may start seeing more CK-4/SP but until then there is a lot of older diesel's out there that would suffer & or not meet current or prior specifications.
When I put my reading glasses on and the hearing aids it is system over load be careful !
4WD
$50 site donor 2024
4WD
$50 site donor 2024
So if you don’t own that Ford* vehicle - fleet companies with diesels and 3500 GMC vans won’t care … Delvac already “recommends“ for SP use - so bet they are getting closer and mainly work with GM …
*this was an easy grab - it’s been ground on like a bad weld here
That's right, It's a process over time though as newer equipment allows for those modern oils. However, That ford spec may not mean much to you but it does to us ford owners to meet engine oil warranty requirements. If an oil oem specification didn't mean anything then where does it end? Obviously, you're not going to use a 10w-30 SP gasoline only oil in your diesel truck as an example. Oil specification's mean something no matter how much one tries to discredit them.
Add in the fact that Ford was trying to remedy a valve train wear issue when CK-4 oils rolled out so who would not want to opt for better protection by buying the Ford Spec'd oil in a Power Stroke?
Can you point to where Delvac "recommends" SP in diesel applications? The ones I see do not recommend SP.
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4WD
$50 site donor 2024
Seems to be a Ford thing their owners can deal with - *Mobil Delvac is tight with GM … Valvoline is tight with Cummins …
*makes CAT oil too …
On the Delvac 1300 write up …
4WD
$50 site donor 2024
For some reason I keep thinking Delo & GM are friends...IDK. But GM does source their other oils from Mobil so why not their for their Duramax & others. Delvac 1300 does have low levels of Phos & Zinc. & I now do see that they recommend SP. I will update the diesel oil spreadsheet now to SP. Thanks!
4WD
$50 site donor 2024
Delvac 1300 is now EHC based and was FF in lots of DMax’s
I've read about that EHC before but just looked it up again. Appears to be a range of a group II oil. I noticed the VI didn't go over 119 on any of them. They must be using some group III here though because it's positioned as a "Blend".
https://www.mobil.com/en/sap/our-products/product-series/ehc-series
4WD
$50 site donor 2024
Yes, I would imagine a small percentage is all you need since EHC is already a (so called) Grp2+ …I've read about that EHC before but just looked it up again. Appears to be a range of a group II oil. I noticed the VI didn't go over 119 on any of them. They must be using some group III here though because it's positioned as a "Blend".
https://www.mobil.com/en/sap/our-products/product-series/ehc-series
Raymond sad! I thought Mobil listed Delvac 1300’s base oil as “severely hydroprocessed” in their sds a few years ago…
I’m surprised Delvac and some other oils currently are just CK-4
The plot thickens. Calling 4WD
per the label on a jug of Delvac 1300 15w40 I have sitting on my shelf.
Ford list. Delvac is on it as well as hundreds of others.
Now, important question: how old is that jug or what is date code? Thanks
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