AMSOIL 0W-40 FS 100% SYNTHETIC EUROPEAN MOTOR OIL

AMSOIL 0W-40 FS 100% Synthetic European Motor Oil delivers the protection and precision that European engines demand, covering gasoline, diesel, and hybrid applications with a single, purpose-built formula. It meets the exacting specifications of BMW, Mercedes-Benz, Porsche, Volkswagen, and Renault while safeguarding modern emissions systems.

European engines run hotter, rev harder, and go longer between oil changes than most of their domestic counterparts. Tight tolerances, turbocharging, and manufacturer-mandated extended drain intervals put enormous stress on motor oil. A conventional or generic synthetic oil that doesn't account for these conditions can lead to sludge buildup, turbo coking, and premature wear, along with fouled diesel particulate filters or catalytic converters.

MEETS STRICT EUROPEAN MANUFACTURER SPECIFICATIONS
Finding the right 0W-40 synthetic oil for a BMW, Porsche, or Mercedes-Benz means matching a specific list of OEM approvals. AMSOIL 0W-40 European Motor Oil (EFO) meets API SN, ACEA A3/B3 and A3/B4, BMW LL-01, Mercedes-Benz 229.1, 229.3, and 229.5, Porsche A40, Renault 0700 and 0710, and VW 502.00 and 505.00. That covers a broad range of vehicles, from the BMW 3 Series and 5 Series with N52 and N55 engines to the Porsche 911, Cayenne, and Macan, Mercedes C-Class, E-Class, and Sprinter vans with the OM642 diesel, and Volkswagen GTI, Golf R, and Touareg models. Shear-stable synthetic base oils maintain viscosity throughout extended service intervals, so the oil that comes out at the drain still meets the grade it went in as.

PROTECTS TURBOCHARGERS FROM COKING AND OIL STARVATION
Turbocharger shaft speeds can exceed 100,000 RPM, and oil temperatures at the bearing can spike well above bulk oil temperature. When oil breaks down under that heat, it leaves carbon deposits on turbo shafts and bearings, a condition known as turbo coking. AMSOIL 0W-40 European Motor Oil resists thermal breakdown with a flash point of 232°C (449.6°F) and a fire point of 246°C (474.8°F), keeping the oil stable in the hottest part of the engine. Its pour point of -51°C (-59.8°F) means oil reaches the turbo bearing quickly at cold startup, even in extreme winter conditions, reducing the oil starvation window that causes the most wear.

FIGHTS SLUDGE AND VARNISH FOR A CLEANER ENGINE
Extended drain intervals of 10,000 miles or more are standard on many European vehicles. Over that distance, oil that lacks sufficient oxidation stability and detergency will accumulate sludge and varnish deposits in critical areas like piston ring grooves, oil galleries, and valve train components. AMSOIL 0W-40 European Motor Oil records a Noack volatility of just 8.6 percent (ASTM D5800), meaning it resists evaporative loss and the thickening that follows. A Total Base Number of 10.1 provides strong acid-neutralizing capacity to handle combustion byproducts over the full drain interval, helping prevent corrosive wear and deposit formation.

EMISSIONS SYSTEM COMPATIBILITY
Modern European diesels and gasoline direct injection engines rely on catalytic converters, diesel particulate filters, and selective catalytic reduction systems. Oil with excessive sulfated ash, phosphorus, and sulfur can poison these devices over time. AMSOIL 0W-40 European Motor Oil uses a precisely balanced SAPS formulation that provides robust engine protection without shortening the life of exhaust aftertreatment components. This makes it suitable for Euro 6 compliant vehicles where emissions system longevity is a real concern.

HIGH-TEMPERATURE, HIGH-SHEAR STABILITY
The HTHS viscosity of this oil measures 3.9 cP (ASTM D5481), comfortably above the 3.5 cP minimum required by the ACEA A3/B4 specification. This number reflects the oil's ability to maintain a protective film on bearings and cylinder walls under real operating conditions, specifically at 150°C and high shear rates. A viscosity index of 181 (ASTM D2270) indicates that the oil maintains consistent viscosity across a wide temperature range, from cold starts below freezing to sustained high-speed driving on the autobahn.

SPECIFICATIONS AND COMPATIBILITY
AMSOIL 0W-40 FS Synthetic European Motor Oil (EFO) meets or exceeds the following specifications: API SN, ACEA A3/B3, ACEA A3/B4, BMW LL-01, Mercedes-Benz 229.1, 229.3, 229.5, Porsche A40, Renault 0700, Renault 0710, VW 502.00, and VW 505.00. It is compatible with other synthetic and conventional motor oils, though mixing will reduce performance benefits and extended drain interval capability. Aftermarket oil additives are not recommended.

SERVICE LIFE
Recommended for the extended drain intervals established by the vehicle manufacturer. Change the oil filter at the time of each oil change. Where oils have been mixed, AMSOIL does not support extended drain intervals.