The 2022 BMW M240i xDrive is a performance-oriented compact car that delivers exhilarating power through its 3.0-liter twin-turbocharged inline-six engine. To maintain the high levels of power, efficiency, and reliability that BMW engineering demands, vehicle owners must adhere to strict fluid specifications. The B58 engine, code B58B30O1 H, operates under significant thermal and mechanical stress, particularly given the turbocharged nature of the powertrain and the all-wheel-drive system that manages traction. Using the correct lubricants is not merely about following a schedule; it is about ensuring that every component, from the tight-tolerance engine bearings to the complex ZF 8-speed automatic transmission, receives the protection required to withstand extreme conditions.
Whether you are navigating city traffic, enduring a long highway commute, or pushing the vehicle’s capabilities on a track, the fluid dynamics within your BMW must remain stable. Standard mineral oils or inferior synthetic blends often break down under the high heat generated by turbochargers and the constant load of the xDrive system. AMSOIL 0W-20 LS 100% Synthetic European Motor Oil and other synthetic lubricants are engineered to exceed the rigorous standards of European manufacturers, providing superior thermal stability and wear protection. By using these specialized fluids, you ensure that your vehicle’s complex internal components are shielded against sludge formation, corrosive wear, and temperature extremes, ultimately extending the service life of your investment.
Recommended AMSOIL Products
- AMSOIL 0W-20 LS 100% Synthetic European Motor Oil – Specifically designed for the unique demands of this BMW, this oil features a precise blend of synthetic base oils and premium additives tailored for European vehicles.
- WIX Oil Filter – Offers premium filtration media that outperforms original equipment manufacturer-branded filters to ensure clean oil circulation.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Provides exceptional protection for the 8HP51 transmission, remaining fluid in sub-zero temperatures while withstanding heavy towing and elevated heat.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – An ethylene glycol 50/50 pre-mix formulation that protects all cooling system metals, gaskets, and hoses for up to 150,000 miles.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with stable viscosity across a wide temperature range, meeting BMW’s strict requirements.
Engine Oil and Filtration Specifications
The heart of the 2022 BMW M240i xDrive is the B58 engine, a 3.0-liter inline-six known for its responsiveness and efficiency. However, this performance comes with a need for precise lubrication. The manufacturer specifies an oil viscosity of 0W-20 for all temperature conditions. This low-viscosity grade is critical for rapid lubrication during cold starts and for maintaining a thin oil film that reduces drag within the engine, thereby improving fuel economy and power output.
The total fluid capacity for a complete engine oil change, including the filter replacement, is 6.9 quarts. It is vital to note that after refilling the system, the oil level must be checked and verified to ensure the correct level is achieved. The drain plug requires a specific torque of 18 ft/lbs to prevent leaks or thread damage, and the drain plug seal must be replaced during every service. The standard WIX Oil Filter is an excellent match for this application, utilizing premium media that captures contaminants effectively to protect the engine’s tight tolerances.
AMSOIL 0W-20 LS 100% Synthetic European Motor Oil is the ideal choice for this vehicle. Unlike standard synthetic oils, the “LS” European formula is engineered with a specific additive package that addresses the unique chemical and thermal requirements of modern European engines. It contains a high concentration of anti-wear agents that protect camshafts and valve trains, which are often the first components to wear in high-stress performance engines. This oil also resists thermal breakdown, ensuring that the oil maintains its viscosity and protective properties even when the turbocharger pushes the engine into its high-RPM power band. For owners of vehicles like the M240i, where the engine is frequently driven hard, the extended protection offered by this synthetic lubricant is a significant advantage over conventional synthetic blends.
Transmission and Differential Protection
The M240i xDrive is equipped with an 8-speed automatic transmission, specifically the ZF 8HP51 model. This transmission is renowned for its smooth shifting, but it operates under extreme conditions, particularly when coupled with the torque of a turbocharged engine. The total fill capacity for the transmission is approximately 9.8 quarts for a complete fill, though refill amounts will vary depending on the specific service procedure and whether a fluid change is a flush or a drain-and-fill.
Using a fluid designed for these extreme demands is crucial. The AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is formulated to withstand the rigors of heavy towing, high ambient temperatures, and challenging terrain. It maintains its viscosity and shear stability under the extreme pressure of the transmission’s clutch packs and planetary gears. This fluid also remains fluid in sub-zero temperatures, ensuring that the transmission shifts smoothly even in the coldest winter conditions. Furthermore, it resists oxidation and sludge formation, keeping the hydraulic system clean and responsive. For a vehicle with an all-wheel-drive system, the transfer case and differential components also benefit from high-quality lubricants, although specific differential fluid recommendations for this specific model are not currently available in the primary product lineup, ensuring the transmission fluid’s superior characteristics help maintain the overall drivetrain health.
Cooling System and Brake Fluid
Reliable cooling is essential for the longevity of any internal combustion engine, especially one with a turbocharger. The cooling system in the 2022 BMW M240i requires a specific type of AMSOIL Passenger Car & Light Truck Antifreeze & Coolant that is compatible with the aluminum components and seals used by BMW. The system holds approximately 11.1 quarts of the high-temperature AMSOIL Propylene Glycol Antifreeze and Engine Coolant (HTCC) or 4.8 quarts of the low-temperature coolant (LTCC) depending on the specific configuration.
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is a 50/50 pre-mix formulation that is phosphate, nitrate, nitrite, silicate, borate, and amine-free, making it safe for all cooling system metals and hoses. This coolant is engineered to exceed OEM requirements, offering protection up to 150,000 miles or 5 years. It prevents corrosion, erosion, and cavitation, ensuring that the engine’s water jacket and the turbocharger’s cooling jacket remain free of deposits. Alternatively, for those who prefer to mix their own coolant to reduce shipping weight or storage space, AMSOIL Propylene Glycol Antifreeze and Engine Coolant is a concentrated option. This product offers even longer service intervals, protecting up to 150,000 miles in passenger cars, and surpasses standards for metallic corrosion and erosion.
Similarly, the braking system requires a fluid that will not absorb moisture or boil under heavy use. BMW specifies a DOT 4 Low Viscosity fluid, and the AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid is a perfect match. This fluid provides excellent responsiveness for the ABS and traction control systems, which are integral to the performance of the xDrive system. It maintains a stable viscosity over a wide temperature range, preventing brake fade during spirited driving and ensuring reliable stopping power in emergency situations.
Vehicle Background and Performance Context
The 2022 BMW M240i xDrive represents a significant evolution in the brand’s compact performance sedan lineup. Part of the F87 generation (though updated for 2022), this vehicle bridges the gap between the sporty 2 Series Gran Coupe and the full-fat M2. Under the hood lies the legendary B58 engine, a 3.0-liter straight-six twin-turbocharged unit that has become the gold standard for BMW’s inline-six engines. This engine is renowned for its smooth power delivery, robust bottom end, and exceptional responsiveness, producing a powerful blend of performance and refinement that is rare in this class.
The “xDrive” designation indicates the inclusion of BMW’s intelligent all-wheel-drive system. Unlike traditional systems that may only engage when slip is detected, xDrive continuously monitors road conditions and distributes power between the front and rear axles to optimize traction and handling. This capability makes the M240i a highly capable vehicle in all weather conditions, allowing drivers to exploit the engine’s power with confidence whether in dry, wet, or snowy environments. The vehicle’s chassis is tuned to offer a balance between sporty handling and daily drivability, making it a favorite among enthusiasts who need a practical car that can still deliver a thrill on the back roads.
Despite its robust engineering, the M240i xDrive does face specific challenges that can be mitigated with high-quality lubricants. One common issue associated with the B58 engine and similar BMW engines is the potential for carbon buildup on the intake valves, particularly in models with direct gasoline injection (GDI). High-quality motor oils with effective detergents, combined with AMSOIL P.i.® Performance Improver Gasoline Additive or AMSOIL Upper Cylinder Lubricant Corrosion Inhibitor, can help mitigate this issue by keeping the fuel system clean and reducing the formation of carbon deposits on the valves and injectors. Another potential problem is transmission fluid breakdown under extreme heat, which can lead to harsh shifting or premature wear in the clutch packs. Using a Signature Series synthetic transmission fluid with superior thermal stability can significantly reduce this risk.
Furthermore, the all-wheel-drive system places additional strain on the transfer case and differentials, which are often exposed to heat and load during spirited driving or off-road excursions. While specific differential fluid recommendations for this model may vary, ensuring that all drivetrain components are lubricated with high-grade synthetic fluids can prevent premature wear and ensure smooth power distribution. Owners should also be aware of the potential for brake fluid moisture absorption over time, which can lead to a spongy pedal feel and reduced braking performance. Regular replacement with a high-boiling-point AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid ensures that the braking system remains responsive and safe. By addressing these common wear points with the right lubricants, M240i owners can maximize the performance and longevity of their vehicle, ensuring it remains a reliable and exciting driving companion for years to come.
In conclusion, maintaining the 2022 BMW M240i xDrive requires more than just following a standard maintenance schedule. It demands the use of fluids that are specifically engineered to handle the unique demands of BMW’s high-performance engineering. From the turbocharged engine to the sophisticated all-wheel-drive system, every component benefits from the superior protection offered by AMSOIL synthetic lubricants. By choosing these advanced fluids, owners can ensure that their vehicle continues to perform at its peak, providing a safe, reliable, and exhilarating driving experience regardless of the conditions.