Engine Oil treatment product "XcelPlus"
 

Has anybody heard of “XcelPlus” oil treatment?
The web site is www.xcelplus.com
It says it is the original “Slick 50” formula.
There are several tests from good sources supporting the claims.
Has anybody used this?

Hummmm?
 

I would never use these as preventative maintenance products. If you already have an engine problem that is different. If you do not have an engine problem either use a good synthetic or synthetic blend product and keep away from "magical" additive products.

Lee

Just spent the last hour reading about the stuff. There seem to be many official studies proving that it works, but I haven't been able to determine exactly what PfL is. There also seems to be lots of other stuff that they want you to buy at the same time.

If this is the same stuff as Slick 50, the I suspect the PfL is Teflon (Dupont trademark item). Slick 50 went out of business for two primarily reasons 1) Dupont refused them product unless they quit making claims for teflon properties that just didn't exist, and 2) the consumer products protection people at the Federal Trade Commsision sued them for false claims (one link is at http://www.ftc.gov/opa/1997/07/slick.htm).

They throw around terms like "dry film", which does have some lubrication enhancement capability, but I've never heard of a dry film being applied after the fact in an oil based solution. I am under the impression that they must be applied "dry", then baked on, and are of most use when applied to things like valve stems, etc. here's one source on the subject http://www.hotrod.com/techarticles/51120/

Somewhere on the website, they specifically say that they are not using teflon. Its not inconceivable that the stuff will stick to the metal parts while its in the oil. People are getting pretty good at making multi-functional molecules. The idea is that one end of the molecule will stick to metal while the other end of the molecule will have a lubricating property.