New formulation of the original Friction Proofing launched 70 years ago.
New fully synthetic formula is compatible with synthetic, semi-synthetic and mineral oil-based engine oils.
Specially formulated to reduce friction and wear, improve oxidation and stability, increase engine cleanliness and improve fuel economy.
Features cutting edge technology to improve engine oil performance without exceeding the American Petroleum Institute (API) SM limits on sulfur and phosphorus.
http://www.wynnsusa.com/engine.aspx
New fully synthetic formula is compatible with synthetic, semi-synthetic and mineral oil-based engine oils.
Specially formulated to reduce friction and wear, improve oxidation and stability, increase engine cleanliness and improve fuel economy.
Features cutting edge technology to improve engine oil performance without exceeding the American Petroleum Institute (API) SM limits on sulfur and phosphorus.

http://www.wynnsusa.com/engine.aspx