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Mobil 1 V Twin Oil

Mobil 1™ V-Twin motorcycle oil

Rated 4.7 out of 5 by 18 reviewers.
  • 2016-07-27 T08:58:44.553-05:00
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Full synthetic offering outstanding protection

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.

Mobil 1 V-Twin 20W-50 engine oil is designed to help provide the proper frictional characteristics necessary for wet-clutch common engine/transmission systems.

The unique, synthetic structure of the Mobil 1™ motorcycle oil formulations offers advantages beyond conventional motorcycle oils of similar viscosities.

Please reference our Mobil 1™ Product Guide for a quick look at specifications including zinc and phosphorus, as well as manufacturer approvals for Mobil 1 motor oils.

Features and benefits

  • Superb shear stability can help resist viscosity shear down in high-performance engines and transmissions
  • Exceptional thermal stability can help resist oxidation and high-temperature degradation
  • Outstanding protection against wear of engine and transmission components
  • Enhanced lubrication can help maintain maximum power and acceleration over the life of the engine
  • Optimized wet-clutch performance
  • Excellent low-temperature flow characteristics can help minimize engine wear during startup 

  • 20W-50

    Specifications and approvals

    Mobil 1 V-Twin 20W-50 meets or exceeds the requirements of:

    • API SJ

    According to ExxonMobil, Mobil 1 V-Twin 20W-50 is of the following quality level:

    • API SH
    • API CF

    Technical details

    Engine/Application Type 4-Cycle
    SAE Grade 20W-50
    Service Classification API SJ, SH, CF
    Density, g/ml @ 15.6°C (ASTM D4052) 0.87
    Flash Point, °C (ASTM D93), 214
    Pour Point,°C (ASTM D97) -42
    Kinematic Viscosity, cSt @ 40°C (ASTM D445)     172.3
    Kinematic Viscosity, cSt @ 100°C (ASTM D445)     20.8
    Viscosity Index 142
    Cold Cranking, cP (ASTM D5293) 7,500 @ -15°C
    Pumping, cP (ASTM D4684) 14,000 @ -20°C

    View product data sheet for Mobil 1™ V-Twin 20W-50



Show reviews
Rated 5 out of 5 by Used in a Peerless VST Hydrostat Lawn tractor This is an older Murray Tractor with a VST unit that I rebuilt because of internal loose hardware. These units run very hot and there is a consensus of using 20W50 vs their expensive hydrostat mystery oil in the pump. Many have had success with this fluid. Unit seems very smooth and noiseless after 10 hours of use. While flat terrain performance is maybe a bit better than the old fill, Performance on steeper hills is excellent, the old stuff seemed to struggle even when brand new. Considering the old stuff was 15 years old, This oil will hopefully last the life of the unit. June 4, 2016
Rated 2 out of 5 by JASO Rating 20w50 doesn't have the recommended JASO MA or MA2 by Rekluse clutches and many MX bikes with wet clutches. May 30, 2016
Rated 5 out of 5 by Boosts Power, Restores Torque, Smoother Shifting I own a 2000 Yamaha Big Bear 400 4x4. I used to use Castrol GTX but found out from my mechanic that an additive in it will hurt the clutch. I am a fan of Mobil 1 oil in my car, so I searched for oil for my atv. As soon as I put it in, I got better take offs, smoother shifts, and a cleaner, smoother idle. I 100% recommend this oil. March 27, 2016
Rated 5 out of 5 by Best V-Twin Oil I've Ever Used! I have a 2004 Yamaha Road Star Midnight Silverado XV1700 V-Twin. I had used a couple of other brands (brand "C" and brand "RP"). They did the job, but I wasn't 100% happy with their performance. I use Mobil 1 Extended Life oil in my GMC truck, so I wanted to try Mobil 1 in the bike. I can honestly say that I'm now 100% happy with my oil's performance. On start-up, the engine is quieter. On the road, the engine runs cooler, quieter, and smoother. The transmission shifts smoother, too. Upon changing the oil, I even found the used Mobil 1 to be cleaner than the other brands I'd used when changing them. Overall, this is, in my opinion, the best oil you can use in a V-Twin engine. January 30, 2016
Rated 5 out of 5 by Good Quality, Price is right. I have been using this in my 2004 Honda Goldwing GL1800 for several years. Shifting is smooth and quiet after changing. The oil holds up well. It might go longer, but I change every 5000 miles. February 16, 2016
Rated 5 out of 5 by I switched! I used to use a traditional 20W50 oil in my 2007 FLTR. I tried Mobil 1 V-Twin after reading about it in one of the motorcycle magazines I subscribe to. My engine now runs cooler and quieter, plus it seems to run smoother. Now I only have to change the oil once or twice a year. Just wish it came in a gallon size. October 17, 2015
Rated 5 out of 5 by Great oil worth the extra cost I switched from Valvoline synthetic to Mobile 1 in my Triumph Speed Triple. There is a noticeable difference in clutch smoothness and engine performance. My bike runs much smoother and quieter than before, this is especially true during the initial warm-up procedure. Mobile 1 stays much cleaner than any other oil I have used in the bike. I've found that after a year the oil is still good, though I replace my oil once a year and use a K&N oil filter (I put about 3,000 miles a year on my Triumph). I'm going to stick with this oil, my bike loves it! September 12, 2015
Rated 4 out of 5 by This Oil is the Best Yet ................ I have a 2015 Street glide special and I was looking for oil for my new Harley . So I called several places and then i called Mobil 1 tech support and I spoke to a tech and the tech assured me that I would be very pleased with this oil . I also asked if i could run the oil in the transmission and primary . The tech checked and said yet . So I picked up the oil and changed the oil my self . I am pleased with Mobil 1 because i already run Mobil 1 in my Corvette . I will only need 1 oil only for ever thanks for the information and great product . June 6, 2015
  • 2016-07-27 T08:58:44.553-05:00
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