AMSOIL Full Synthetic 20W-50 Motor Oil
AMSOIL 20W-50 synthetic oil is formulated with advanced technology to create the finest motor oils for people who demand maximum preservation and performance for their engines. The result is engine protection that surpasses even the most stringent industry benchmarks. Choose from the formulations below for oil that best meets your needs.
AMSOIL Z-ROD® 20W-50 100% Synthetic Motor Oil
- Engineered for classic vehicles
- Helps retain horsepower
- High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components
- Protects against rust during storage
AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil
- High-zinc formula guards against wear
- Ideal for flat-tappet cams
- Resists deposits to help keep engines clean
- Convenience of use for gas and diesel engines
AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil
The Confidence to Compete, The Protection To Win
- Specifically designed for high-HP diesel engines
- Outstanding bearing protection under extreme loading
- Delivers 50% more film thickness1
- Robust viscosity control
AMSOIL 20W-50 100% Synthetic V-Twin Motorcycle Oil
- 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 Synthetic V-Twin Oil Change Kit – 4 Quarts with Black Filter
- Combines everything needed to perform an AMSOIL oil change on most 1999-2016 Harley-Davidson* motorcycles in one convenient package
- Includes four quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one black AMSOIL Motorcycle Oil Filter and one drain-plug O-Ring
*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 Synthetic V-Twin Oil Change Kit – 4 Quarts with Chrome Filter
- Combines everything needed to perform an AMSOIL oil change on most 1999-2016 Harley-Davidson* motorcycles in one convenient package
- Includes four quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one chrome AMSOIL Motorcycle Oil Filter and one drain-plug O-Ring
*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 Synthetic V-Twin Oil Change Kit – 5 Quarts with Black Filter
- Combines everything needed to perform an AMSOIL oil change on most 2016-present Harley-Davidson* motorcycles in one convenient package
- Includes five quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one black AMSOIL Motorcycle Oil Filter and one drain-plug O-Ring
*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 Synthetic V-Twin Oil Change Kit – 5 Quarts with Chrome Filter
- Combines everything needed to perform an AMSOIL oil change on most 2016-present Harley-Davidson* motorcycles in one convenient package
- Includes five quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one chrome AMSOIL Motorcycle Oil Filter and one drain-plug O-Ring
*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 Hydrostatic Transmission Fluid
- Fights wear for smooth, responsive operation
- Purpose-built to outperform motor oils
- Resists high heat and shear
