Recommended for Pre-Evolution® V-Twin engines when ambient temperature is between 80°F and 100°F (EU: 26,67 and 37,78 °C). Outstanding protection for engine cold starting. Special additives provide excellent wear protection and durability while guarding against sludge buildup and oil breakdown. Meets all warranty performance criteria for Harley-Davidson® engines and does not void new vehicle warranties. Made in the U.S.A..