Red Line ® 10W40 Motor Oil is a full-synthetic ester/PAO formula. Blended with polyol ester/PAO base stocks that feature natural multi-grade properties, this formulation avoids unnecessary additives that hinder lubricity. High detergency allows extended drain intervals and provides increased cleanliness. Completely compatible with conventional and synthetic motor oils.

• Popular for medium and heavy-duty gasoline engines in light trucks
• Best choice for high-performance engines that see street/strip or track activity
• Great for engines with high oil temperatures
• At operating temperature, similar oil film to a petroleum 20W50
• Recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4
• Designed to provide the highest protection, efficiency, cleanliness, and superior drain intervals
• High natural viscosity index (VI) provides thicker oil film in bearings and cams
• Less evaporation than other synthetics for improved efficiency and ring seal
• Improved fuel economy and ring seal for more power