1. There are many PTFE based oil additives - Slick 50, Liquid Ring, Lubrilon, Microlon, Matrix, Petrolon, QMl, T-Plus, Tufoil
2. These products exist because of a THEORETICAL advantage to their use in lubricating engine compoents, based on a PROVEN advantage in non-automotive mechanical applications
3. Out of all the above products, Slick-50 is one of the earliest and most widely used. It has since been widely criticised because:
a) Very aggressive marketing without independant research verifying its benefits
B) Theoretical and anecdotal evidence of the large PTFE particles causing build-up and clogging within engine oil chambers (the product has to be "shaken before use", adding further proof of the large particulate nature)
4. DuPont prob with-held its approval of PTFE based oil additives bec of the bad press assoc with Slick-50
5. Tufoil is not the same as Slick-50, the same way as McDonalds is not the same as Burger King
6. Tufoil supposedly overcomes the problems assoc with Slick-50 by using nanotechnology (super small sized particles) that don't build up within the engine oil system (doesn't have to be shaken either!)
7. This is somewhat supported by the independent testing and international patents assoc with Tufoil, but not with Slick-50
8. Therefore, you cannot imply that all PTFE additives are equally as good or bad
9. Major automotive manufacturers would never support engine additives for their cars; for the most part, they don't support ANY aftermarket product, as to do so would mean extensive R&D with each individual engine in their line-up using the product. But just bec Toyota doesn't support GReddy intercoolers doesn't mean they're of poor quality, right?
10. The jury is still out on Tufoil, so if you're interested the best thing to do is to try it for yourself!