Mercury Cougar Owners banner


  1. Teflon coated Pistons

    Cougar Community Discussion
    Has anyone ever tried this? is it even possible? what affects would it have on an engine? Teflon -polytetrafluoroethylene (PTFE) is an ultra-modern, thermo-set, self-lubricating coating, chemically bonded to a phenolic-epoxy base so it’s highly resistant to scratches and abrasion. The...