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Discussion Starter #1 (Edited)
Updated on 7/15/2020

Recommendation: Do NOT rely solely on this list. Always double check to make sure the following oils are current in meeting factory specifications.

The new 3rd gen (2020+) EcoDiesel has different specs than the 2nd generation (2014 - 2019) engine. The following oils have been known to meet the new MS-12991 and API SN Certification/Standard/Approval. I put them in order based on what I think are more 'commonly known', not based on preference or performance.

Mopar 68231020AA 5W-40
Pennzoil Platinum Euro 5W-40
Valvoline European Vehicle 5W-40
Quaker State Ultimate Durability EURO 5W-40
Havoline ProDS 5W-40
Amsoil European Car Formula 5W-40 Classic ESP Synthetic (EFM)
Redline Full Synthetic 5W-40
Motul 8100 X-clean 5W-40
Liqui Moly Leichtlauf High Tech 5W-40
TRIAX Euro LX 5W-40
TRIAX Euro Ultra VX 5W-40
Ravenol VST 5W-40
Total Quartz 9000 5W-40
ELF Evolution 900 SXR 5W-40
ELF Evolution 900 FT 5W-40
AMALIE Elixir Full Synthetic Euro 5W-40
Millers Oil Trident Fully Synthetic 5W-40
Millers Oils XF LONGLIFE 5W-40
MPT Thirty-K True Synthetic High Performance 5W-40
CAM2 Blue Blood Elite Euro 5W-40
FUCHS TITAN Supersyn SAE 5W-40
REPSOL ELITE COSMOS HIGH PERFORMANCE 5W-40

I will update this thread as new approved oils are added.
 

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Although AMSOIL recommended that option, it is not listed on their site to meet that specification, and the sulfated ash content is higher than allowed by the specifications. MS-12991.
 

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The other Non-Shell oils all meet the spec, but aside from possibly the Valvoline, none have been manufacturer listed, meaning the company is certifying it’s viability - I haven’t heard back from Valvoline US yet!
 

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Discussion Starter #4
Although AMSOIL recommended that option, it is not listed on their site to meet that specification, and the sulfated ash content is higher than allowed by the specifications. MS-12991.
According to Amsoil, "For this 2020 Ram, the AMSOIL EFM meets the MOPAR MS-12991 specification. Our technical data sheet and product labels will reflect this when they are due for their next revision."
 

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According to Amsoil, "For this 2020 Ram, the AMSOIL EFM meets the MOPAR MS-12991 specification. Our technical data sheet and product labels will reflect this when they are due for their next revision."
That is contrary to what I was told by 2 different AMSOIL representatives who run a Facebook group dedicated to oils.
 

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Discussion Starter #6
The other Non-Shell oils all meet the spec, but aside from possibly the Valvoline, none have been manufacturer listed, meaning the company is certifying it’s viability - I haven’t heard back from Valvoline US yet!
I'm double checking as well. I contacted Shell to verify and here's what they said, "If the vehicle calls for a product that meet MS 12991. Our Rotella product will NOT work in the application. The only product we have that meets the spec is the Pennzoil Platinum Euro SAE 5W-40 Full Synthetic Motor Oil."
 

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Discussion Starter #7
That is contrary to what I was told by 2 different AMSOIL representatives who run a Facebook group dedicated to oils.
I have it in writing from their tech department. I received their response today.
 
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I have it in writing from their tech department. I received their response today.
That’s good news!
They may be doing some quick reformulating! I know that the sulfated ash was higher than the spec, you could see it on UOAs for the product! I also know they don’t need it to be that high, as they are very capable of formulating it without!

Mobil outright told me they have nothing that meets the spec, and no plans to do an oil for it!
 

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Discussion Starter #10
Oh, one of the Motul 8100 series I believe they list for this spec. The spec dates back to the 1.4L MultiAir at least.
You're correct. I will add the Motul 8100 X-clean 5W-40 to the list.
 

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You're correct. I will add the Motul 8100 X-clean 5W-40 to the list.
Done a bit of asking since I bought mine last week. Really smart guy works for an independent oil company told me that RedLine will really keep it clean, said he saw no harm in using the AMSOIL Euro, even though ash was higher than spec. Basically said the DPF wouldn’t care, and lifespan difference probably wouldn’t be enough to notice! Recommended a Tri-Syn that definitely doesn’t meet spec, but probably works great.
 

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That is contrary to what I was told by 2 different AMSOIL representatives who run a Facebook group dedicated to oils.
Most of the supposed Amsoil representatives are actually independent Amsoil dealers and have little to no actual knowledge, I was one of them for years. For techincal questions like this one should contact Amsoil directly.
 

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Most of the supposed Amsoil representatives are actually independent Amsoil dealers and have little to no actual knowledge, I was one of them for years. For techincal questions like this one should contact Amsoil directly.
Josh and some of his friends are very well versed, and know the product, as well as the formulation information, including the various additives. These aren’t your average guys! One of the guys who works as a formulation man for an independent, basically guessed the composition of a couple of proprietary NASCAR race oils, based on the desired characteristics.
The UOAs also tell a clear story that it wasn’t within spec quite recently.
AMSOIL is small. Their total sales wouldn’t even be a noticeable blip on the radar of a Shell or ExxonMobil. They can quickly and effectively alter a formula slightly to meet our requirements while still exceeding the others the oil was developed for. I have no doubt that with my requests, and the people we are talking being high level marketing within AMSOIL, that it’s likely being done! Their Signature Series is literally one of the best oils in the world!
 

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Discussion Starter #16
My personal choice
If you decided to pull a sample, I would like to see your UOA results with Red Line. I do a fair amount of towing, so I need an oil that's going to holdup well. I probably won't exceed 6,000 mile drain intervals, but peace of mind goes a long way. I'm planning to keep this truck for the long haul, so I'm interested to see which oils prove to be superior.
 
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