Originally Posted By: tig1
Originally Posted By: aquariuscsm
Originally Posted By: CELICA_XX
Here is Mobil's answer to this question:
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What’s the difference between Mobil 1 and Mobil Super Synthetic?
Mobil 1 is part of our ultimate line of advanced full synthetics. It uses the latest in additive and base oil technologies that provide superior protection, and outperforms Mobil Super Synthetic. It meets both GM’s stringent dexos1* and Europe’s ACEA performance standards. More car builders recommend Mobil 1 by name than any other motor oil brand in the world. More NASCAR drivers use Mobil 1 than any other motor oil brands. Mobil 1 has provided exceptional performance throughout its nearly 40-year history and stands alone as The World’s Leading Synthetic Motor Oil Brand.
Mobil Super Synthetic is a full synthetic that uses synthetic-base oils. It outperforms our conventional and synthetic blend products. It meets or exceeds the latest industry requirements, GF-5 /API SN. The product offers performance consistent with many synthetics in the market.
All that babble and they still didn't answer the question,haha.
1) Few outside of BITOG would understand the technical differance.
2) Not many more here at BITOG would either.
3) There ain't no way XM, Shell, Castrol, or Valvo, and the others would reveal the differances in their formulations.
For the record, however, MSS is a grp 3 oil and any M1 badged oil is a blend of 3-4-5 and other goodies.
We don't know what proportions of what basestocks are used in M1, MSS, PP, PU, Syntec, Synpower, Edge, RP or SSO, since the blenders won't tell us.
What we do know is what we can observe in VOAs/UOAs, as well as in certs.
There is nothing outstanding about any flavor of M1 based upon either observed performance, add packs or certs.
I also beg to differ with you in that most members who have been here for more than a few years would understand the technical differences.
I agree with you in that no blender is going to provide any information as to the basestocks used in a finished oil.
So, for the record, we can't conclude that MSS is Grp III while M1 is a blend containing lots of Grp IV and Grp V along with other unspecified goodies, unless XOM is willing to disclose their actual formulation, which they won't.
I'm glad you've had good experience with M1, but we have a mod here who did equally well with ST conventional on the same drain intervals you use.