It does make you wonder, doesn't it?quote:
Originally posted by Triple_Se7en:
.............When oil gets changed/reformulated after only a short run, that raises a red flag with me.
I'd like to see the extended OCI used oil analysis on this site, let's say 8,000 mi. and up, showing that PP, Syntec, and other Group III syns are comparable to or better than M1 or Amsoil. I don't remember seeing very many at all.quote:
Originally posted by NewGuy:
Group III based products are generally viewed as inferior products here on BITOG, but the used oil analysis don't support this at all. PP, Syntec and other Group III synthetics turn in used oil analysis that are terrific and comparable/better than M1 or Amsoil.
You might be right that there are not many examples of extended drains using PP, Syntec or other Grp III products. However, there really aren't many 10K+ examples on any oil. I have never seen a bad UOA from any Castrol product. I have seen some great used oil analysis on Syntec in a variety of engines.quote:
quote:
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Originally posted by NewGuy:
Group III based products are generally viewed as inferior products here on BITOG, but the used oil analysis don't support this at all. PP, Syntec and other Group III synthetics turn in used oil analysis that are terrific and comparable/better than M1 or Amsoil.
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I'd like to see the extended OCI used oil analysis on this site, let's say 8,000 mi. and up, showing that PP, Syntec, and other Group III syns are comparable to or better than M1 or Amsoil. I don't remember seeing very many at all.
This was taken from MaximaUSA's website. (2002)quote:
Relative Costs of Basestocks, Group I to Group V
Base Oil Category
Group I Group II Group III Group IV Group V
Relative Cost 1 1 2 to 3 4 to 5 10 to 15
Yes, but is PP going to continue to show good results from its ongoing changing formulations? The results that it showed in the past, with past formulations, are meaningless today.quote:
Originally posted by Terry:
Whatever the actual base oil chemistry of PP it IS showing good oil analysis results that we intepret. Especially lower wear values in spite of fuel dilute, etc.
I'm not concerned about the base oil as long as the performance vs price provides high value. I trust Terry if he says the performance is still there.quote:
Originally posted by Johnny:
the base stock was switched over to Group III in November of 2005.