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6.4L Oil and MS-12633


This is a discussion on 6.4L Oil and MS-12633 within the Heavy Duty forums, part of the 4th Gen : 2009 - Present category!
So anyone know what exactly MS-12633 says? The reason I ask is because Castrol Edge 0w40 is made in Belgium ...


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Old 01-04-2017, 05:40 PM   #1 (permalink)
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Default 6.4L Oil and MS-12633
So anyone know what exactly MS-12633 says?

The reason I ask is because Castrol Edge 0w40 is made in Belgium and is a group 4 synthetic available easily at Wally World for $26 for 5 quarts. It's CN rated.

I know Penzoil can be had for under $5 a quart if you play AMAZON's price game, right now it's about $7 with the rebate.

Any thoughts on using a non MS-12633 oil? Anyone run the Castrol Edge in their 6.4L without the engine exploding?


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Old 01-04-2017, 07:10 PM   #2 (permalink)
 
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I am currently using Amsoil Signature 0W-40 with the MS-12633 tag. I don't know if it matters, but I don't want to have a warranty issue, and not have the spec oil in the truck.

Some people have said their 6.4 Hemi ticked real loudly with the Mobil1 0W-40 oil.

If you have a brand new truck, you might want to try and preserve your warranty if you can.
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Old 01-04-2017, 08:27 PM   #3 (permalink)
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This comes up quite a bit with us SRT guys, and this is what I've heard from chatting with guys in the industry.

MS-12633 is a stupid spec. Any of the top synthetic oils should meet it, but it requires a two year fleet use test program.

FIAT has a strong business relationship with Pennzoil through the Ferrari (owned by FIAT) and Shell (owner of Pennzoil) partnership. So, when they bought Chrysler, they made the business decision to switch the Chrysler OEM oil partner from Mobil to Pennzoil.

To support this business relationship, FCA started listing a spec that only Pennzoil met, and that anyone else would need to spend two years and a big chunk of money acquiring. Mobil 1 and many others would likely be able to get certified, but have probably made the business decision that there wouldn't be enough of a return on that investment at this stage.

All that said, the Pennzoil Ultra Plat is an excellent oil. It's not absurdly expensive and it has an SRT logo on the bottle, so I buy it for my car. When I do the first oil change on my truck (it's a 5.7) I'll have to decide if I'm going to stick with the M1 I've run in my past HEMIs or go to Pennzoil for it also.
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Old 01-04-2017, 09:29 PM   #4 (permalink)
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I'm using Castrol Edge with no ticks, clicks, hiccups, CELs. 16,000 miles and towing... Now, if the warrantee police happen to come after me, I'm screwed I'm sure. as well, I've lost a bunch of my receipts anyway.


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Old 01-04-2017, 10:48 PM   #5 (permalink)
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Originally Posted by reek View Post
I'm using Castrol Edge with no ticks, clicks, hiccups, CELs. 16,000 miles and towing... Now, if the warrantee police happen to come after me, I'm screwed I'm sure. as well, I've lost a bunch of my receipts anyway.
I've done 10.6 miles on Castrol Edge so far and it seems to work fine...

I'm not 100% certain how FCA could even tell what the oil in the truck was unless you told them.

Back in the day, M-1 was the stuff for sure. Today I'm not so sure. Most M-1 is now a group 3, though the 0w40 might still be a group 4/5.

The Castrol 0w40 made in Belgium/Germany group 4 oil is a steal at $26 for 5 qts. Glad to hear it's working OK.

My oil pressure is right at 52 with it same as the factory fill.

Thanks everybody!


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Old 01-04-2017, 11:19 PM   #6 (permalink)
 
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Originally Posted by HS-LD View Post
I've done 10.6 miles on Castrol Edge so far and it seems to work fine...

I'm not 100% certain how FCA could even tell what the oil in the truck was unless you told them.

Back in the day, M-1 was the stuff for sure. Today I'm not so sure. Most M-1 is now a group 3, though the 0w40 might still be a group 4/5.

The Castrol 0w40 made in Belgium/Germany group 4 oil is a steal at $26 for 5 qts. Glad to hear it's working OK.

My oil pressure is right at 52 with it same as the factory fill.

Thanks everybody!
In theory, FCA would have to prove the issue was related to a oil failure. In reality, they can ask for proof of proper oil was used and records to back that up.

You basically have to ask yourself what is the path of least resistance in the rare case of a oil related failure? Showing spec'd proper oil was used with records and receipts or fighting the machine that is FCA corporate with only records of non spec'd oil used?

In addition, if you were to have a oil related failure with whatever "Brand X" oil used, Brand X oil would also be off the hook because they have fall back that you did not used the FCA spec'd oil.

That being said, I also have not followed religiously the MS-12633 spec but I also understand the risks and assume that. Just understand the risks and any other opinion here telling you it is 100% ok to not follow the spec and owners manual call out is not going to be standing next to you financially in the rare event you should have a oil related issue.



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Old 01-04-2017, 11:29 PM   #7 (permalink)
 
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I doubt there would be a major meltdown if you didn't use spec PP, but for the extra few bucks per quart and the number of changes you'll do, that's peanuts compared to a replacement engine if something does happen to go sideways.

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Old 01-05-2017, 02:24 AM   #8 (permalink)
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Having admitted I'm an infidel, I would probably use the recommended oil if it were actually easy to find in 0w40 and when I did find it, it didn't cost an arm and a leg.

now that I've confessed, this may be old news, but I see amazon has a "mopardeals" vendor with 6 quarts for $37.50 delivered to my door. means, I can now comply and not have to wait in line at wally world.


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Old 01-05-2017, 02:36 AM   #9 (permalink)
 
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Use whatever you want, doing a little research and choosing even better. Here's the thing, if you had an engine failure you could always have the tow guy tow it to your house and change the oil to PUP. I mean if anyone is that worried about your warranty, there is no way the dealer could prove anything if you have new oil in there that meets the spec.

I would use PUP though, super clean base oil.


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Old 01-05-2017, 03:02 AM   #10 (permalink)
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Originally Posted by Hootbro View Post
In theory, FCA would have to prove the issue was related to a oil failure. In reality, they can ask for proof of proper oil was used and records to back that up.

You basically have to ask yourself what is the path of least resistance in the rare case of a oil related failure? Showing spec'd proper oil was used with records and receipts or fighting the machine that is FCA corporate with only records of non spec'd oil used?

In addition, if you were to have a oil related failure with whatever "Brand X" oil used, Brand X oil would also be off the hook because they have fall back that you did not used the FCA spec'd oil.

That being said, I also have not followed religiously the MS-12633 spec but I also understand the risks and assume that. Just understand the risks and any other opinion here telling you it is 100% ok to not follow the spec and owners manual call out is not going to be standing next to you financially in the rare event you should have a oil related issue.

The oil life indicator is going to go off around 6500-7500 miles. By that time I will have changed the oil 3 times. I can always just use the Pennzoil every 3rd oil change and have receipts for compliance...

And the wording in the owners manual is interesting: The manufacturer "ONLY" recommends synthetic oil and api SN.

The manufacturer recommends (not "only") 0w40 and Penzoil and MS-12633. To take this to an extreme in a court case, as long as you ran a synthetic SN oil, you were complying with their exclusive recommendations, the lack of the word "only" for the other recommendations would preclude exclusivity. (At least that would be any reasonable lawyers argument.)

If I actually could find out what MS-12633 said or specified, I personally would be a lot happier. I don't mind running something if there are real reasons to do so. FCA shagging Shell is not a good reason. And that's what I'm suspicious of.


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