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I am beginning to see Briggs and Stratton Enginges that recommend that the oil never needs to be changed. They claim the engines are sealed better to keep contaminants out and that it runs cooler. This doesn't seem like a good idea to me...

In addition to Zn/P, it seem that PCMOs use either Mo/B additives OR Na additives. On the other hand, based on the PQIA data, the diesel oils don't seem to use a sodium based package. What gives? Is there a reason for this difference?

If it is in the filter, then it is not in the oil for UOA. So, does great filtration hide much of the wear that would have otherwise been observed by UOA?

Warning: the following is a little long, but the question is interesting to me. I have been looking at some of the literature on viscosity index improvers, pour point depressants, and base oil waxes. From what I can gather, some VIIs can interact with waxes and PPDs (and solvent for that...

I see blenders making claims about film strength - film of next grade up or 4X stronger than competitor. It seems as though most measures would be confounded with additives for boundary lubrication and would not have anything to do with an actual oil film. Is there an industry standard for...

White Shepherd and Blue Devil stop-leak seems to have a strong following. They are the same product. I think that the White Shepherd name has been retired and replaced with Blue Devil. In any case, the active ingredient is diethylene glycol monoethyl ether, one of the chemicals found in the...

Does anyone have a reference for, or experience of, any actual measurements that have shown a benefit of UCLs. Specifically, has any UCL been shown to reduce cylinder, ring, or valve seat wear? Alternatively, has any UCL been shown to reduce friction (when in use) to a point that it increases...

I was trying to find out when metal oil cans were replaced with paper oil cans. I came across this following site about PCMOs as collectables. I thought that if anyone was interested, it would be a BITOGer. http://www.nathanspetro.com/oil-can-guide.html

I noticed the new G-oil packaging has an added logo from USDA to verify bio-based. However, the bottom of the logo says "product 37%". If the oil is only one third tallow based and maybe one quarter additive package, does anyone know what the other 35-40% is? Am I misunderstanding the packaging...

It seems that many here look at remaining TBN as the ONLY metric for lifespan of an oil change. However, it seems that it would be just as important to know if you have exceeded the capacity of the dispersants, have exhausted the AW or EP additives, ect. The TBN is only a measure of buffering...

I was looking for the example of additive clash/oil incompatibility that Pennzoil gave in their Q&A response in Jun 2010. The answers used to be on the homepage. Does anyone know what happened to it? Is it still here somewhere?

I was looking into buying some Kreen and took the time to read the agreement that you must accept before you can purchase Kano Labs products. The following statement is listed: "ALL PRODUCTS PRODUCED AND DISTRIBUTED BY KANO LABS ARE FOR USE IN THE MANUFACTURING PROCESS ONLY AND ARE NOT FOR...

Missouri(MO) was the third state to mandate E10. The first two were Hawaii and Minnesota. However, I stopped for gas today at a station from which I had never purchased fuel. I noticed that the pumps listed the phrase "contains ethanol" for 87 and 89 octane grades, but not for 91 octane fuel...

I want to preface my question by stating that I would like to learn something as opposed to starting an argument. Lately, I have read a lot of posts that suggest that HTHSV is the primary measurement that should be considered when deciding on a viscosity. I recognize that some will suggest that...

I keep reading here and elsewhere that only in the US can Grp III oils be marketed as synthetic. As far as I can tell, some european countries have specific legal language that prevents GrpIII from being marketed as synthetic. However, it seems that in much of the rest of world "synthetic" oil...

Does any know why Pentosin makes such a big deal about not mixing 7.1 with "modern" hydraulic fluids. The web is full of recommendations about not mixing this fluid. Pentosin claims that it is not miscible with other hydraulic fluids. It seems that myths have grown-up around the confusion...

I bought some PS fluid at O'Reiley's. It was a multivehicle spec that included Honda and domestics (Master Pro Chemicals). I found the pds and was amazed. The VI is listed as 37. cSt@100 C range 4.75-6.0 cSt@40 C range 29.0-43.5 It was 4.99/quart. I guess you get what you pay for... I have...

Does the following quote from a Mobil FAQ suggest that Delvac utilized the Moly trimer? "With their unique formulation, Mobil Delvac oils can help deliver performance beyond the boundaries of conventional oils because the composition includes Trimer Core chemistry, a powerful additive...

I have been experimenting with trying to replace VersaTrak fluid wherever I can on a 2005 Montana SV6 - it is now $32 per PINT. I have given up on the rear drive module(RDM). Nothing has been satisfactory except for VersaTrak fluid. In the transfer case (TC), I decided to try Castrol HypoyC (6...

I have a 2005 Montana SV6 with the 4T65e transmission and the AWD transfer case (M76). the 90 degree PTO gear clearly has it's own fluid (specs Versatrak). My question has to do with the upper chamber. I cannot see a separate fill/drain for the upper chamber. I have seen posts that suggest that...