
20W-50 Synthetic V-Twin Motorcycle Oil
Product code : MCVQT-EA
• Resists viscosity breakdown 6X better than Harley-Davidson* SYN3* for improved protection against compensator and transmission gear wear.1
• Resists extreme heat to help keep engines clean and efficient.
• Reduces wear and deposits for maximum engine compression and power.
• Convenience of one lubricant for all three sumps.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.
1Based on testing of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil and Harley-Davidson Screamin’ Eagle SYN3 purchased on 3/19/19 in the CEC L45-KRL, ASTM D445 test.
• Resists viscosity breakdown 6X better than Harley-Davidson* SYN3* for improved protection against compensator and transmission gear wear.1
• Resists extreme heat to help keep engines clean and efficient.
• Reduces wear and deposits for maximum engine compression and power.
• Convenience of one lubricant for all three sumps.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.
1Based on testing of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil and Harley-Davidson Screamin’ Eagle SYN3 purchased on 3/19/19 in the CEC L45-KRL, ASTM D445 test.
20W-50 Synthetic V-Twin Motorcycle Oil
Engineered for maximum performance in V-twin engines, motorcycle transmissions and primary chaincases. Protects against extreme heat. Wet-clutch compatible. Advanced synthetic formulation resists viscosity loss to keep critical components clean and protected.
See the Product Data Bulletin for full details.
REDUCES WEAR & DEPOSITS
- Resists viscosity breakdown 6X better than Harley-Davidson SYN3 for improved protection against compensator and transmission gear wear.1
- Contains heavy treatment of anti-wear additives to reduce wear in the most extreme operating conditions.
- Fortified with maximum levels of oxidation inhibitors to fight deposits for maximum engine compression and power.
Resists Viscosity Breakdown
AMSOIL resists viscosity breakdown 6X better than Harley-Davidson SYN3 for improved protection against compensator and transmission gear wear.1

1Based on testing of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil and Harley-Davidson Screamin’ Eagle SYN3 purchased on 3/19/19 in the CEC L45-KRL, ASTM D445 test.
WITHSTANDS EXTREME HEAT
- Formulated with naturally heat-resistant synthetic base oils that resist oxidation in extreme summer heat and during strenuous stop-and-go rally or parade traffic.
- Unique additive system helps keep engines clean and running efficiently in the toughest riding conditions.
- Prevented piston-ring sticking and protected against piston scuffing after 1,000 miles (1,609 km) of extreme-heat dyno testing during which cylinder temperatures reached 421°F (216°C) (see video below).
PROTECTS TRANSMISSIONS & PRIMARIES
- Shear-stable formulation resists thinning from mechanical activity to protect transmissions and primaries from wear.
- Performs like a gear lube without the negative effects of extreme-pressure additives.
- Delivers the convenience of one lubricant for all three sumps.
TRUSTED BY PROFESSIONALS
AMSOIL Synthetic V-Twin Motorcycle Oil is the top choice of hardcore riders everywhere. Here’s what some have to say.
See the Product Data Bulletin for full details.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.
20W-50 Synthetic V-Twin Motorcycle Oil
SDS
Download the SDS
Data Bulletins
Download the Data Bulletins
WARRANTY
Download the WARRANTY
20W-50 Synthetic V-Twin Motorcycle Oil
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Harley Oil ChangeOnly oil I use in my '13 Heritage Softail.Bottom LineYes, I would recommend this to a friend.
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CoolOnly oil I run in my bikes. Runs cooler in the Texas heat.
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First-Time UserBy  JIMMY,  a  Verified Buyer  from  San Antonio, TX  on  February 15, 2021So far so good. My Indian Roadmaster Elite seems to run and shift a bit smoother. I have not seen an increase in fuel mileage but I’ve only rode a few times.Bottom LineYes, I would recommend this to a friend.
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My bikes.By  JOSEPH,  a  Verified Buyer  from  Connecticut  on  February 15, 2021I put over 20,000 a year on my bikes and have used Amsoil in all of them sense new . Never had a problem with the engine . transmission or the primary .Bottom LineYes, I would recommend this to a friend.
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Bottom LineYes, I would recommend this to a friend.
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AMZOIL oil reviewI have used this oil in my 2014 Indian Chieftain since I bought it. My motor runs about 10 to 15 degrees cooler. And it runs smootherBottom LineYes, I would recommend this to a friend.
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By  ANTHONY,  a  Verified Buyer  from  Huntsville, Al  on  February 10, 2021Very satisfied with this product. I'm gonna start using it in my truck as well.Bottom LineYes, I would recommend this to a friend.
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Bottom LineYes, I would recommend this to a friend.
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Best oil money can buyBest oil on the market. Easy to get. Shipped to my garage. Life is great.Bottom LineYes, I would recommend this to a friend.
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Good StuffGood stuff. Noticeably smoother, cooler running engine. H.D. Mikwaukee Eight 107. I change mine every 3000 miles. Clean going in, clean coming out.Bottom LineYes, I would recommend this to a friend.