Royal Purple 55041 XPR SAE 10W-40 Extreme Performance Racing Motor Oil - 55 Gallon Drum

Royal Purple XPR (Extreme Performance Racing) 10W-40 is a fully synthetic racing motor oil engineered to meet the rigorous demands of racing and extreme-performance engines. Available in a 55-gallon drum, this bulk format is ideal for professional race teams, engine builders, and high-volume motorsports operations.

Formulated with premium synthetic base oils, Royal Purple's proprietary Synerlec? additive technology, and elevated levels of ZDDP (zinc dialkyldithiophosphate), XPR 10W-40 delivers outstanding wear protection and maximized engine performance under the most demanding conditions. Synerlec creates high-strength ionic bonds with metallic surfaces, increasing oil film strength and lubricity while resisting thermal degradation even at extreme operating temperatures.

The 10W-40 viscosity grade is specifically designed for marine, oval track, and endurance car racing, and is especially popular in sprint cars, late models, and World of Outlaws racing. XPR racing oil is also compatible with exotic fuels including alcohol and nitromethane applications, making it an outstanding choice for blown alcohol and nitro-methane racing builds.

Key Features:

• Proprietary Synerlec? additive technology for industry-leading anti-wear performance
• Elevated ZDDP (zinc dialkyldithiophosphate) levels for maximum flat tappet and valvetrain protection
• Premium synthetic base oils resist thermal breakdown at sustained high temperatures
• Reduces Low Speed Pre-Ignition (LSPI) in turbocharged and GDI engines
• Compatible with exotic racing fuels ? resists fuel emulsification from alcohol and methanol
• Fully formulated with complete additive package suitable for extended use
• Greater lubricity and low coefficient of friction for maximum power output
• Recommended for gasoline and light-duty diesel engines, including turbocharged, supercharged, and naturally aspirated applications
• Popular in NASCAR, NHRA, World of Outlaws, and Bonneville Salt Flats competition
• 55-gallon drum format ideal for race teams and professional engine builders

Please Note: Royal Purple XPR racing oils do not conform to API and/or ILSAC licensing requirements and should not be used when manufacturer's warranties are a concern. This product is intended for competition and performance applications.