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AMSOIL 20W-50 100% 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 1/26/24 in the CEC L45-KRL, ASTM D445 test.
AMSOIL 20W-50 100% 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 1/26/24 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.
AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil
Data Bulletin
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AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil
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ImpressiveBy ANTHONY, a Verified Buyer from NJ on July 14, 2025I'm a believer. switched everything with an engine to Amzoil. 2008 Electraglide Police runs strong and cool and I know its protectedWas this review helpful?
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Quality product, excellent customer service, and communicatBy KEITH, a Verified Buyer from Greer South Carolina on July 14, 2025Quality product, excellent customer service, and communication!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Everything you need and nothing you dontBy RICHARD, a Verified Buyer from Arizona on July 13, 2025Ordered two oil change kits from Amsoil, super easy and everything needed to complete the job. Online ordering made it simple and the kits arrived a couple days later, highly recommended.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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107 Street glide oil changeBy LARRY, a Verified Buyer on July 13, 2025Worked grateBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Oil changeBy SANDE, a Verified Buyer from Pa on July 13, 2025If you love your bike you’ll put the best lubricants in it. AMSOIL is the best by farBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Quality oilBy SANDE, a Verified Buyer from Pa on July 13, 2025Harley motors get super hot therefore the last thing you want to do is skimp on your fluids. AMSOIL takes great care of your motor in any conditions. Wouldn’t think of using anything elseBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Motorcycle oilBy TOMMY, a Verified Buyer from Texas on July 13, 2025Been using this oil in my 2018 Harley Davidson Road glide ultra since I bought it, haven’t had any type of engine problems.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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excellent serviceBy KENNETH, a Verified Buyer from Michigan on July 12, 2025always good speedy serviceBottom LineYes, I would recommend this to a friend.Was this review helpful?
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Amsoil V-TwinBy ROBERT, a Verified Buyer from Laguna Hills,CA on July 11, 2025I have been using Amsoil in my Harleys since 2004, running in cold and extreme heat. Bottom line I trust it can’t ask for more than that.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
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Great productBy MrD, a Verified Buyer from American Canyon CA on July 11, 2025I’ve been a Harley mechanic for over 40 years and used all of the top name brand oils out there. Besides using Harley’s conventional 20/50 oil for new motor break ins, I haven’t found a better oil than AMSOIL Synthetic 20/50 for “after break in” use. I’ve pulled down motors ran on AMSOIL and the parts after thousands of miles show very little wear. I’m such a fan that I switched my diesel, my Porsche and my wife’s Grand Cherokee over to AMSOIL.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
