Mobil 1™ V-Twin 20W-50

Full synthetic offering outstanding protection

Mobil 1™ V-Twin 20W-50

Mobil 1™ V-Twin 20W-50 synthetic motorcycle oil is formulated to help offer outstanding protection in four-cycle, V-Twin type engines – particularly those that are air-cooled and tend to run hotter than other types of engines.

Please 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 motorcycle oils.

Features and Benefits

Mobil 1 V-Twin 20W-50 combines high performance synthetic basestocks technology with a precisely balanced component system to help provide outstanding engine cleanliness, excellent wear protection at high temperatures and highly effective protection from corrosion. Regular use of Mobil 1 V-Twin 20W-50 helps maintain maximum power output due to the inherently strong performance and protection provided by the synthetic technology. This specially engineered motorcycle engine oil helps to deliver unsurpassed performance under severe race operation, air-cooled operating conditions and in any driving condition, from mild to severe. Key features and potential benefits include:



Advantages and Potential Benefits

Optimized frictional properties

Consistent power due to reduced frictional losses

Overall optimized balance of engine performance and fuel economy

Exceptional wear protection

Helps to extend engine life

Outstanding thermal and oxidation stability

Fluid film protection at all operating temperatures, from mild to severe, minimizing deposit formation especially at the high operating temperatures found in air-cooled engines

Outstanding low-temperature properties

Effective lubrication at low ambient temperatures helping to enable easy starting, rapid wear protection and less drain on starter system

Excellent detergent/dispersant capability

Outstanding engine cleanliness, smooth and reliable operation

Effective protection from rust and corrosion

Long life of critical valve train and bearing components



Mobil 1 V-Twin 20W-50 is specifically recommended for lubrication of four-stroke motorcycle engines in high performance motorcycles, and meets or exceeds standard industry quality levels.


Specifications and Approvals

This product is recommended by ExxonMobil for use in applications requiring:



This product is recommended for use in applications requiring:




This product meets or exceeds the requirements of:



Properties and Specifications



SAE 20W-50

Cold-Cranking Simulator, Apparent Viscosity @ -15 C, mPa.s, ASTM D5293


Density @ 15.6 C, g/cm3, ASTM D4052


Flash Point, Pensky-Martens Closed Cup, °C, ASTM D93


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


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


Mini-Rotary Viscometer, Apparent Viscosity, -20 C, mPa.s, ASTM D4684


Pour Point, °C, ASTM D97


Viscosity Index, ASTM D2270



Health and safety

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




Mobil 1™ V‐Twin 20W‐50 fully synthetic motorcycle oil is designed for air‐cooled, large‐displacement bikes. Because of their design, these engines can generate very high localized oil temperatures and high overall bulk‐oil temperatures. A typical air‐cooled V‐twin's rear cylinder gets a lot hotter than the front cylinder – it's a matter of airflow. When it's hot out and you're stuck in traffic, the oil temperature in a bike climbs rapidly. Above about 250 degrees Fahrenheit, conventional motor oil is going to break down. Mobil 1 V‐Twin 20W‐50 fully synthetic motorcycle oil is good to above 300 degrees Fahrenheit. Like Mobil 1 Racing™ 4T 10W‐40, Mobil 1 V‐Twin motorcycle oil has high levels of phosphorus/zinc and the same high‐temperature detergent technology for superior wear protection and engine cleanliness, even at elevated oil temperatures. With Mobil 1 V‐Twin motorcycle oil, you can go the full length of the manufacturer's recommended oil change intervals with ease.

In addition to the overall benefits of high‐temperature stability and low volatility/low oil consumption, Mobil 1 synthetic motorcycle oils also offer superior anti‐corrosion performance compared to conventional motor oil, which is important in many parts of the country where bikes may sit in garages for several months of the year. Compared to conventional oils, Mobil 1 motorcycle oils provide superior wear and high‐temperature protection, and promote engine cleanliness and lower oil consumption. Once you get beyond these general advantages, you have to consider individual motorcycle oils to understand the benefits of each.

It's a little hard to generalize about the difference between Mobil 1 passenger‐car motor oils and Mobil 1™ motorcycle oils. That's because not all viscosities of Mobil 1 passenger‐car oils have the same levels of zinc and phosphorus, and there are even greater differences between the two Mobil 1 motorcycle oils.

  • In general, Mobil 1 motorcycle oils have additive packages formulated for use in both motorcycle engine and transmission operation.
  • For passenger vehicles, fuel economy and emission system protection are higher priorities. These require low phosphorus systems and the use of friction modifiers.
  • Motorcycle oils do not require friction modifiers for fuel economy and for better clutch friction less/no friction modifier is optimum.
  • Motorcycle oils allow the use of higher levels of anti‐wear additives such as ZDDP (phosphorous).

Plus there are the overall benefits of Mobil 1 synthetic oil compared to those of conventional motor oils, whether they be for passenger cars or motorcycles:

  • Superior long‐term engine protection
  • Superior high‐temperature stability
  • Excellent low‐temperature starting
  • Outstanding engine performance
  • Low volatility/low oil consumption