Nice burn....thanks....quote:
Originally posted by JeepZJ4.0:
Mobil Clean 5000 has a totally new additive package. It has better basestocks than the TropArtic and Havoline. The add. pack has antimony. Its a good oil, more robust than over conventional oils. Check out the VOA section and find this oil and the discussions about it.
sgtgeek - That may be your opinion but with out proof, your word is as worthless as those bags of crap that Home Depot sells for 2 bucks.
I just did a search and no one hasn't done a mobil clean 5000 UOA yet. I have 10 free quarts but I'm going to wait awhile for the UOAs to come in. Call me a fool, but I'm not comfortable with the sodium add pack yet.quote:
Originally posted by 1911:
Althoug many here think UOA's are way overrated, it will be interesting to see the results from these lubes when the UOA's start rolling in. Hopefully, that will be soon.
1911
Ray H, you've got journalistic talent brother. That was all well said.quote:
Originally posted by Ray H:
According to ExxonMobil's MSDSs on Mobil Clean 5000, the base oil is severely refined and is non-carconogenic in animal studies*. The latter implies little more than trace amounts of poly-cyclic aromatics: 0.1% - do call a finished motor oil using such base stocks a "full synthetic". ExxonMobil makes no such marketing claim. (perhaps to their detriment in achieving sales penetration) As good as I believe the ConocoPhillips Group II/Group III synthetic blends are, this ExxonMobil formulation is probably better, though priced commensurately higher. The classic plain-Jane over achiever - heart as good as gold, but never gets asked to the dance.
*The unadditized base stock could be drunk - it'd clean ya' out, royal, but it's pure to the point of being non-toxic. The only base stocks purer are polymerized PAOs and esters.
Are you saying that the "non-carconogenic" claim requires levels in the 0.1% to 0.5% range and that you would never see levels this low in Group II? The requiremens for aromatic levels in BOTH Group II and Group III are <1%.quote:
Originally posted by Ray H:
According to ExxonMobil's MSDSs on Mobil Clean 5000, the base oil is severely refined and is non-carconogenic in animal studies*. The latter implies little more than trace amounts of poly-cyclic aromatics: 0.1% - 0.5%. These are toxic and carcinogenic in levels found in Group I and, to some degree, in Group II base stocks, too.
Who said it was superior? I said it was "unique." Only time and UOAs will tell if it is "superior."quote:
Originally posted by sgtgeek:
I do get the point....that is exactly why I solicit his input (or anybody else's for that matter) on the VOA of Mobil versus the VOA of a Havoline...and how that relates to any superior formula/UOA...I read high lead/sodium..in the 7500....OK....how does that relate to any superior formula?
Polycyclic aromatics are highly carcinogenic compounds. Everything I've read online from the EPA about the little buggers suggests keeping them at or below 0.5% ingested or topical concentration. I got the figures for Group I and Group II base stocks from a 1999 white paper written by David C. Kramer, Senior Staff Engineer - Base Oil Technology, Brent K. Lok, Senior Product Manager - Base Oils, and Russ R. Krug, Manager - Base Oil Technology, all of Chevron Oil Co.: "The Evolution of Base Oil Technology". Group I was listed at, "10% PCAs. Group II was listed as equal to or greater than 90% saturates which would yield equal to or less than 10% PCAs. Equal to or less than 10% allows for considerably more PCA content than "less than 1%" by my understanding of mathematics. If you have more recent information indicating tighter control over PCAs in Group II base stocks, I'd certainly appreciate your posting your source.quote:
Originally posted by G-Man II:
...Are you saying that the "non-carconogenic" claim requires levels in the 0.1% to 0.5% range and that you would never see levels this low in Group II? The requiremens for aromatic levels in BOTH Group II and Group III are strong>
Ray, you are right. I meant to type <10%. My point was that you can see aromatic levels in Group II that are <1% also. Look at Chevron's spec sheets for their Group II and Group III base oils. Aromatics for both are listed at <1%. That being the case, trace levels of aromatics can't be used as a definitive criteria for Group III base oil.quote:
Originally posted by Ray H:
Polycyclic aromatics are highly carcinogenic compounds. Everything I've read online from the EPA about the little buggers suggests keeping them at or below 0.5% ingested or topical concentration. I got the figures for Group I and Group II base stocks from a 1999 white paper written by David C. Kramer, Senior Staff Engineer - Base Oil Technology, Brent K. Lok, Senior Product Manager - Base Oils, and Russ R. Krug, Manager - Base Oil Technology, all of Chevron Oil Co.: "The Evolution of Base Oil Technology". Group I was listed at, "10% PCAs. Group II was listed as equal to or greater than 90% saturates which would yield equal to or less than 10% PCAs. Equal to or less than 10% allows for considerably more PCA content than "less than 1%" by my understanding of mathematics. If you have more recent information indicating tighter control over PCAs in Group II base stocks, I'd certainly appreciate your posting your source.quote:
Originally posted by G-Man II:
...Are you saying that the "non-carconogenic" claim requires levels in the 0.1% to 0.5% range and that you would never see levels this low in Group II? The requiremens for aromatic levels in BOTH Group II and Group III are strong>
Not me that is for **** sure....Look at the original question...then read the response from Carlos the Jeep/Internet Expert guy...I never said Havoline was superior or Mobil was inferior...I merely stated that for 5000K OCI's one could reap the same benefits with Havoline or other dino's.....quote:
Originally posted by G-Man II:
Who said it was superior? I said it was "unique." Only time and UOA s will tell if it is "superior."quote:
Originally posted by sgtgeek:
I do get the point....that is exactly why I solicit his input (or anybody else's for that matter) on the VOA of Mobil versus the VOA of a Havoline...and how that relates to any superior formula/UOA...I read high lead/sodium..in the 7500....OK....how does that relate to any superior formula?
There are two possibilities: An esterfied additive package is being used, or Group I is being used as the additive carrier oil. Either would provide the necessary solvency and seal swell.quote:
Originally posted by Blue99:
Grp III's typically have poor solvency & need an additional additive for this function.