Royal Purple 55540 SAE 5W-40 High Performance Motor Oil European Formula 55-Gallon Drum

Royal Purple 55540 is a premium full synthetic SAE 5W-40 motor oil engineered specifically for European passenger car engines, available in a 55-gallon drum for fleet and high-volume applications. Formulated exclusively with premium synthetic base stocks and advanced additive technology, this European Formula delivers trusted engine protection and peak performance across a wide range of operating conditions.

Designed for use in European gasoline and light-duty diesel engines — including turbocharged, direct injection, and diesel particulate filter (DPF)-equipped engines — this oil meets the stringent lubrication demands of European OEM specifications. Its premium synthetic formulation provides excellent oxidation stability and low volatility, resulting in reduced oil consumption between service intervals.

Key Features & Benefits:

• Superior Wear Protection — Exceeds the wear protection requirements of API SP and ACEA A3/B4 specifications
• Increased Fuel Efficiency — Low coefficient of friction optimizes fuel economy
• Superior Low-Temperature Performance — Excellent low-temperature flow ensures reliable lubrication and protection during cold starts
• Superior Corrosion Protection — No rust observed in standard industry corrosion testing
• Excellent Oxidation Stability — Long lubricant life; meets or exceeds oil change intervals for most European passenger cars
• Sludge & Varnish Resistance — Exceptional resistance to deposit formation during stop-and-go driving and severe operating conditions
• DPF Compatible — Safe for use in engines equipped with diesel particulate filters and selective catalytic reduction (SCR) systems

Royal Purple 55540 meets API SP and ACEA A3/B4 industry standards, making it suitable for a broad range of European makes and models. The 55-gallon drum format is ideal for service centers, dealerships, and fleet operators requiring bulk quantities of this high-performance synthetic oil.