Is Mobil 1 now group-3?
- Thread starter blano
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Partially. It is grp 3 and grp 4 PAO.
Triple_Se7en
$50 Site Donor 2024
What vehicle oil producer has ever offered you their PAO/Group III percentages for various weights?
Search is your friend.
Mobil 1 is still the same as it was. Whatever that was. So probably Group IV.
Mobil 1 Extended Performance apparently is a blend of Group III and IV.
Mobil 1 Extended Performance apparently is a blend of Group III and IV.
Triple_Se7en
$50 Site Donor 2024
I think you have that backwards.
Mobil 1 should probably be called a synthetic blend. It's performance is certainly no better than any other synthetic blend. The difference is the price. If you think that paying more equates to you get what you pay for then you should be happy with Mobil 1. Mobil 1 is proof that good marketing works. You just need to be a well behaved consumer and buy the stuff. It certainly is good enough to protect you engine and you just may not keep it long enough to tell the difference between Mobil 1 and a better oil anyhow.
I've been here for some time but have yet to see any real proof of the alleged group lll in Mobil 1. It seems just by reading the comments above that no one really knows but coughs up their two cents worth. I would love to see the facts not everyone's best guess. Can anyone on this site supply such facts?
Not sure about the GIII. I suggest that the additive carrier oil contains GIII.
I use M1 in my very high boost turbo miata. So far, the turbo is not giving me trouble. I suspect that an oil that is not capable of the heat would coke up the bearings.
However, the M1 15-50 EP is not able to maintain the same HOT oil pressure reg M1 used to. I also am having all sorts of valve train issues. I suspect this is from the reduced ZDDP. I need to replace my cylinder head now. Cam lobes and HLA's are failing.
Chris
I use M1 in my very high boost turbo miata. So far, the turbo is not giving me trouble. I suspect that an oil that is not capable of the heat would coke up the bearings.
However, the M1 15-50 EP is not able to maintain the same HOT oil pressure reg M1 used to. I also am having all sorts of valve train issues. I suspect this is from the reduced ZDDP. I need to replace my cylinder head now. Cam lobes and HLA's are failing.
Chris
(sigh)
However, the M1 15-50 EP is not able to maintain the same HOT oil pressure reg M1 used to. I also am having all sorts of valve train issues. I suspect this is from the reduced ZDDP. I need to replace my cylinder head now. Cam lobes and HLA's are failing.
And you continue with Mobil 1? There might be other choices.
And you continue with Mobil 1? There might be other choices.
I still have a case of the old GF3 SL 'red cap' 15w50 Mobil 1 and I believe its Group 4
Did you not notice the gas chromatograph test that started this whole mess? That was certainly not a conclusive result, but combined with Mobil's present refusal to clarify makes me suspicious at best. Mobil used to loudly trumpet that their oils contained PAO, esters, ANs and so forth. Now we get the same "we assure you it contains genuine synthetic fluids" sort of drivel.
I can't believe I put a foot back into this water. . .
Just read all the previous posts and threads on this. The horse is dead let it rest.
Some believe it is GroupIII
Some refuse to believe.
Mobil is not saying.
Whole issue started with the results of an above mentioned gas chromatograph test by someone who knows how to read them. Other results were more inconclusive. May be they are experimenting a lot right now and they do not know what you got.
Read the old threads as there are quite a few and make up your own mind if you want to deal with them further. Also check out the Mobil1 UOA results over the last 3 years or so and compare to known oils such as Amsoil and PP etc. and see for yourself if you think that it is worth the price.
Some believe it is GroupIII
Some refuse to believe.
Mobil is not saying.
Whole issue started with the results of an above mentioned gas chromatograph test by someone who knows how to read them. Other results were more inconclusive. May be they are experimenting a lot right now and they do not know what you got.
Read the old threads as there are quite a few and make up your own mind if you want to deal with them further. Also check out the Mobil1 UOA results over the last 3 years or so and compare to known oils such as Amsoil and PP etc. and see for yourself if you think that it is worth the price.
I'm very curious as well since I picked up a six-pack of M1 15W-50 last week at Costco (they do not carry this vis as a rule).
My old 454 likes the heavier-vis stuff and I prefer synthetic oil in the beast because of its resistance to oxidation. But if it really IS Group III now... GRRRRRRRR....
My old 454 likes the heavier-vis stuff and I prefer synthetic oil in the beast because of its resistance to oxidation. But if it really IS Group III now... GRRRRRRRR....
.
By the way, the M1 15-50EP has remained clean and clear in my turbo miata. That is unusual. The car runs up to 33PSI boost and 8K RPM. I suspect the turbo and the piston undersides would fry a lesser oil.
I do plan on trying the M1 15-50 silver cap (non EP) oil in my next change. I suspect it will work fine.
As for the cylinder head and valve train probs, I suspect it is ZDDP related, not base oil related. I want to upgrade to the later cams and head anyway, so this is a good time to do so.
It could have nothing to do with the oil and everything to do with high spring pressures, excessive RPM and high boost pressures. At this point I am not sure.
Chris
I do plan on trying the M1 15-50 silver cap (non EP) oil in my next change. I suspect it will work fine.
As for the cylinder head and valve train probs, I suspect it is ZDDP related, not base oil related. I want to upgrade to the later cams and head anyway, so this is a good time to do so.
It could have nothing to do with the oil and everything to do with high spring pressures, excessive RPM and high boost pressures. At this point I am not sure.
Chris
Quote:
I can't believe I put a foot back into this water. . .
hey torkaholic, when did you become an administrator?
Yes, I've seen it and read everything on this site concerning it. Still, as you yourself said, it is not conclusive. Those flogging the dead horse icons are cute but other than possible this and conjecture that, I've yet to see any actual facts. Apparently no one else has either.
Suspecting and knowing are not the same. I suspect also....all I asked is one anyone actually knew. It's obvious to me now that no one does or can't say so if they do.
I'm not trying to argue the point I would simply like to know positively, if that's even possible, as many others here would. Thanks all for responding.
ADMIN NOTE: Edited to fix format, content not altered.
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