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MS-12633 Is Now MS-A0921
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BULL
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Interesting, as @BULL put it. 
. I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong?
I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
. I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong? I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
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OP
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Thread Starter
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Interesting, as @BULL put it. . I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong?
I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
. I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong?I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
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Interesting, as @BULL put it. . I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong?
I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
. I don't know what that MSA0921 is. That seams like an internal Chrysler/FCA/Stellantis internal rating (I honestly mean, I dk) . The other earlier MS12633 seams like the same. Just like Mercedes Benz has it's MB229.5 or Volkswagen-Audi has it's VW505-00 ratings and company recommendations for oil. I assume those codes are internal company codes and they 'vetted' this brand of oil and give it an OK with there internal company code? Am I wrong?I would be more concerned with the API rating like SP or SN or SN plus. But that's "confusing" also(not-really). I mean that it seams Mobil one was good enough for super charged Hellcats before (as long as API rating was correct), but now that FCA/Stellantis has their contract with Pennzoil that's their recommend. The only constant would be the API rating I would think.
I doubt anyone on this forum lets their oil go 7500 miles before they change it. It looks like you could keep buying the new PUP oil and be fine.
Buy what makes you and your wallet feel good.
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BULL
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Would you believe 250ish miles???
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I just got a case of A0921. I have 4 qts of the old number and am going to mix them. I don't see a problem.
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That's like cats and dogs living together. The whole matrix of the universe will become undone. For God's sake don't do it!
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