Will Prolong hurt your engine?

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Author Message   an Posted on Wednesday, October 02, 2002 - 03:26 pm:    I know most additives are snake oil but I had to try it. I will never use it again but now wonder wether I have done damage and what I can do about it - already drained it and changed the filter. Disco II - 32K -the sucker   muskyman Posted on Wednesday, October 02, 2002 - 04:56 pm:    not unless you drain the oil all out and try to recreate the tv comercial. it does have proven Mechanical friction reducing properties. it is not a lubricant   Michael Noe (Noee) Posted on Thursday, October 03, 2002 - 09:09 am:    It's got chlorine in it, I believe. THis is not good long term, but probably in large concentrations.   Blue (Bluegill) Posted on Thursday, October 03, 2002 - 12:06 pm:    I love the irony of this subject line....   jmusmacker Posted on Thursday, October 03, 2002 - 12:12 pm:    Never used it in my Disco yet, but used it EVERY oil change in my 93 Wrangler. I don't know if it's coincidence, but that Wrangler has over 200k miles on it and purrrrrs as soon as I turn the key........and that's after beating the HELL out of it for the last 5 years off road AND as a commuter vehicle to and from work and school for 4 years.   Dave M. Posted on Thursday, October 03, 2002 - 12:30 pm:    Xpost: Prolong, DuraLube, and other "miracle" oil additives that contain PTFT can build up in your engine. Obviously, everything you read on the internet isn;t true, and I'm not a mechanic, but I've read too many horror stories about these products to ever put them in an engine I care about. http://www.ftc.gov/opa/1999/9909/prolong.htm http://kozmik.guelph.on.ca/gtdproject/fluids/amsoil_prolong_article.htm A quote from http://www.centuryperformance.com/engineoil.htm "One marketer claims to have sold 15 million car owners on a theory that PTFE protects an engine against friction and wear. This is so ridiculous that even Dupont who makes PTFE and markets it under the Teflon® trade name will tell anyone that asks them not to use it in an internal combustion engine. In fact, Dupont was sued by one of these manufacturers so that they would not bad-mouth their own product!" At best, they are snake oil, at worse, they will harm your engine.