Any proof of this “cheapening”? I’d say that they make some good products, that can be had for a very reasonable price; some that hold a plethora of superior approvals as well.
Mopar warranty issues w/ 0w-40 non FCA MS-12633 certification
- Thread starter dja4260
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How is the MS-A0921 “very important for Hemi engines?” Specifics please. And how the Mobil 1 product would be deficient.
And also please explain how Mobil is cheapening their product. Particularly how it would impact the use of the oil in a Hemi.
The only thing that is "very clear" about that verbiage is they RECOMMEND a whole lot of stuff and only state you MUST use something with an API Donut Trademark. Last time I bought Mobil 1 0W40 FS it had an API label on it.
He’s just pulling nonsense out of the air to appear knowledgeable.
No consensus is needed. Just read your owners manual.
There is no proveable instance of somebody that has been denied a warranty with FCA/Stellantis for any oil that did not carry a MS certification when current API spec, grade and recommended change intervals were used.
I have been down this road before when I had a 2015 RAM 2500 with the 6.4.
I have been down this road before when I had a 2015 RAM 2500 with the 6.4.
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Dear @dja4260, it looks like Valvoline also makes a 0W-40 that is MS-12633 and MS-A0921 certified. And as much as I like Valvoline products, I think the Pennzoil SRT 0W-40 is the better product, because it was designed for SRT vehicles and heavy abuse, but the Valvoline is also certified. So you have at least two choices that will keep your warranty intact.
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Ya, but Schaeffer is expensive, very expensive, and hard to get. Buying Schaeffer deffeats the purpose of trying to save money on oil.
AMSOIL 0W-40 Signature is also MS-12633 approved, but it's not API certified, si it conflicts with warranty requirements. Sometimes the easiest and best thing to do is to comply.
I could not find anything on the web that supports FCA/Stellantis denying a warranty due to oil not having the certicication. I simply don't want to be the first one!
f355spider
$50 Site Donor 2025
Dealers has no reason to be "dishonest" and deny a warranty claim. They make money on a warranty claim, just at a lower rate typically, as it is part of their dealer agreement with the manufacturer (lower labor rate and lower profit on the parts). Claims are typically denied by the manufacturer...because manufacturers keep an eye on dealer claims, as sometimes a dealer with a slow service dept may try to get unqualified claims approved to stay busy and keep their bays full. So manufacturers will often ask for more detailed information and testing to verify a higher dollar repair.
That is fine, but it has been pointed out multiple times that the language in the owners manual says an equivalent 0W-40 with the API donut listed can be used.
Just for something for you to chew on, the link below is where I talked about a video (since been deleted) back in 2015 with the RAM director of marketing and the RAM chief engineer stating that 0W-40 was not required for the RAM 6.4 and all durability testing was done with 5W-30 and conventional at that.
https://www.ramforum.com/threads/in...-the-6-4-instead-of-0w-40.75402/#post-1147036
Not stating to use 5W-30 but just giving context that chasing the MS-12633 call out on a oil bottle is more about satisfying a clerical matter than any real world need for that spec to be on a bottle label.
You use the word “certified” while the chart uses “recommended”. Plenty of guys here have recommended Mobil 1 FS 0W-40 too!
I worked at a GM dealer for 12 years so I know the process, even been part of several warranty denial arbitrations. Luckily the dealer I worked at was honest but we often dealt with customers that came from other dealers. Unfortunately many times dishonest dealers do tell customers dishonest things. My guess is to avoid having parts and labor almost cut in half for warranty but who knows….most customers don’t fight it. Dealers aren’t telling them they have the right to arbitration at no cost.
Either way per the OP’s owners manual he is good to run api 0w40.
