Mobil 1 FS X1 5W-50
Mobil 1 FS X1 5W-50 is an advanced full synthetic engine oil engineered to provide outstanding engine protection, strong cleaning performance and reliable lubrication for modern high-performance and high-mileage engines. Developed using advanced synthetic base oils combined with a carefully balanced additive system, Mobil 1 FS X1 5W-50 delivers excellent performance under demanding operating conditions. The formulation is designed to support both modern performance engines and older high-mileage vehicles that require enhanced protection and durability.
One of the key advantages of Mobil 1 FS X1 5W-50 is its ability to provide excellent protection in high-temperature and high-load conditions. The 5W-50 viscosity grade offers strong oil film strength at elevated temperatures, helping protect engine components during heavy-duty driving such as high-speed operation, towing or motorsport environments. At the same time, the low winter viscosity ensures rapid oil circulation during cold starts, helping deliver quick lubrication to critical engine components.
Mobil 1 FS X1 5W-50 also delivers excellent wear protection for heavily loaded engine parts. The advanced additive technology forms a strong lubricating film that helps protect pistons, camshafts, bearings and other moving components from wear under demanding mechanical stress. This protection is particularly important for high-performance engines that operate under increased temperatures and pressures.
Another important benefit of Mobil 1 FS X1 5W-50 is its exceptional resistance to sludge and deposit formation. The formulation contains active cleaning agents designed to prevent harmful deposits from forming inside the engine. These detergents help keep internal engine surfaces clean, supporting efficient oil flow and ensuring reliable lubrication performance throughout the service interval. The oil also offers a high Total Base Number (TBN), helping neutralise acids and protect the engine from sludge build-up during extended service periods.
Mobil 1 FS X1 5W-50 is particularly suitable for high-mileage engines where a thicker oil can help reduce oil consumption and maintain stable oil pressure. The formulation also provides excellent resistance to evaporation, helping reduce oil loss at high temperatures and supporting consistent lubrication performance.
Mobil 1 FS X1 5W-50 is recommended for a wide range of gasoline and diesel passenger vehicles, particularly high-performance engines, turbocharged or supercharged engines and older vehicles without diesel particulate filters. The lubricant performs reliably in demanding driving conditions including high-speed driving, towing, racing and hot climate operation.
Physical characteristics include a kinematic viscosity of approximately 110 mm²/s at 40°C and 17.4 mm²/s at 100°C. Mobil 1 FS X1 5W-50 has a density of approximately 0.86 g/ml at 15°C, a flash point of approximately 240°C and a pour point of approximately −39°C. The oil also provides a Total Base Number of approximately 13, supporting strong sludge protection and reliable lubrication performance across demanding operating conditions.
