Mobil 1™ FS X2 5W-50

Delivers great all-round performance for the latest gasoline and diesel engine technology without diesel particulate filters (DPFs)

Mobil™ 1 FS X2 5w-50

Sludge and engine wear protection piston icon in black and white Keeps engines performing like new

Race-proven technology suitable for extreme driving conditions and motorsports

The balanced technology of Mobil 1™ FS X2 5W-50 advanced full synthetic motor oil helps provide heavy-duty engine performance and protection for an outstanding driving experience. Approved by both Mercedes-Benz® and Porsche®, Mobil 1 FS X2 5W-50 motor oil is suitable for mild to severe operating conditions in vehicles including:

  • High-performance sports cars and SUVs
  • Many gasoline engine technologies
  • Diesel (without Diesel Particulate Filter) engine technologies
Enables long engine life at a wide range of temperatures

With its wide viscosity grade and proprietary blend of ultra-high-performance synthetic base stocks, Mobil 1 FS X2 5W-50 motor oil helps protect your engine and provide outstanding performance in many driving situations.

  • Prevents deposits and sludge buildup
  • Antioxidants help improve oil life
  • All-weather formula provides high- and low-temperature protection
We stand behind our products

Please read our Mobil 1™ limited warranty. Always check your owner’s manual for the manufacturer’s recommended oil viscosity grade, API service classification and any builder approval. You can also refer to the Mobil 1™ Product Guide for a quick look at key manufacturer approvals and info on the zinc and phosphorus levels in Mobil 1 FS X2 5W-50 motor oil.

If your vehicle is covered by a warranty, follow the vehicle’s oil-life sensor or the oil-change interval recommended in your owner’s manual. Proper maintenance practices, including frequently checking the oil level to ensure the appropriate amount of oil is present, are required to ensure effective performance.

Features and Benefits

Mobil 1™ FS X2 5W-50 is made with a proprietary blend of ultra high performance synthetic basestocks fortified with a precisely balanced component system. Mobil 1 FS X2 5W-50's wide viscosity grade helps to provide a flexible combination of powerful protection agents that provide outstanding performance in many driving situations.

Key features and potential benefits include:


•  Prevents deposits and sludge build-up to enable long and clean engine life.

•  Anti-oxidants to help improve oil life.

•  Wide viscosity grade to help provide a flexible combination of high and low temperature protection.

•  Performs and protects at low temperatures.



Mobil 1™ FS x2 5W-40 is recommended by ExxonMobil for all types of vehicles, including high-performance turbo-charged, supercharged gasoline and certain diesel multi-valve fuel injected engines found in passenger cars, SUVs, light vans and trucks.


•  Mobil 1™ FS X2 5W-50 is engineered for many gasoline and diesel (without DPFs) engine technologies

•  Mobil 1™ FS X2 5W-50 is not recommended for 2-Cycle or aviation engines, unless specifically approved by the manufacturer.


Always check your owner's manual for the manufacturer's recommended oil viscosity grade and specifications for your particular vehicle.


Specifications and Approvals

This product is recommended for use in applications requiring:



This product meets or exceeds the requirements of:

Porsche A40








Properties and Specifications




SAE 5W-50

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Pour Point, °C, ASTM D97


Total Base Number, mgKOH/g, ASTM D2896


Density @ 15 C, g/cm3, ASTM D4052


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Ash, Sulfated, mass%, ASTM D874


Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683


Flash Point, Cleveland Open Cup, °C, ASTM D92


Mini-Rotary Viscometer, Apparent Viscosity, -35 C, mPa.s, ASTM D4684


Viscosity Index, ASTM D2270



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @


Oil change intervals can be as short as 3,000 miles or as long as 20,000 miles on some new cars. We recommend that you follow the oil and filter change frequencies shown in your owner's manual, especially during the warranty period. With the high‐performance reserves of Mobil 1, you can have the confidence to go the full mileage or time frame recommended by the vehicle manufacturer. Mobil 1 is especially suitable for the latest vehicles with extended drain intervals or vehicles with oil monitoring systems that vary oil drain intervals. To fulfill the requirements of the Mobil 1 limited warranty, Mobil 1 motor oil must be changed at least every 10,000 miles or your vehicle’s OEM recommended oil change interval, whichever is longer.

With the exception of the Mazda rotary engine (Mazda does not recommend any synthetic oils), Mobil 1 will not void new‐car warranties where an American Petroleum Institute (API) certified oil is recommended. Mobil 1 meets or exceeds API and International Lubricant Standardization and Approval Committee (ILSAC) motor oil service requirements of all new‐car manufacturers, both import and domestic. If in doubt, always check your vehicle owner's manual or contact the vehicle manufacturer.

Many kinds of driving conditions qualify your vehicle for severe service oil change intervals, and Mobil 1 is ideal for this service. Severe service conditions can include, among other things:

  • Trips of less than 10 miles
  • Driving in cold weather
  • Idling for extended periods
  • Stop‐and‐go traffic
  • Pulling trailers/carrying heavy loads
  • Driving in dusty conditions

Under both normal and severe service conditions, Mobil 1 is engineered to provide performance reserves in the areas of sludge prevention, piston cleanliness, wear protection and high‐temperature durability.