What is IMPACT supposed to do?
EDIT, no everything I have ever heard is PTFE does NOT belong in an engine crankcase oil. I would not use it. If you are looking for friction reduction and antiwear protection try
Schaeffer Oil Companys'#132 MOLY E.P. OIL TREATMENT
Moly E.P. Oil Treatment is a highly fortified extreme pressure engine oil
treatment.
Moly E.P. Oil Treatment contains a highly specialized additive package. When
used at the recommended treatment rate, this additive package allows Moly E.P.
Oil Treatment to provide the following performance benefits:
1. Increased compression through better ring seal.
2. A reduction in oil consumption.
3. Elimination of sticking valves and lifters.
4. Reduced blow-by.
5. Increased oil pressure.
6. A reduction in engine friction and wear.
7. Increased power.
8. Better viscosity control.
9. Extreme pressure protection of the engine bearings, valve train, and
pistons and piston rings.
To complement this highly specialized additive package a proven frictional
modifier, Micron Moly® is further blended into Moly E.P. Oil Treatment. Micron
Moly® is a liquid soluble type of moly that plates to the metal surfaces of the
engine. Once plated, the moly forms a long lasting lubricant film in which
prevents the metal surfaces from coming into contact with each other. By
preventing metal to metal contact, damaging frictional wear is eliminated, which
leads to less downtime and longer equipment life.
There are Schaeffer's sales reps at Bobistheoilguy.com who can give you more information on these products and can ship it to you if you want it.