With the introduction of several new and repackaged motorcycle products this year, including Synthetic Metric Motorcycle Oil, AMSOIL offers something for every type of biker, from motocross racers and off-road riders to V-twin and metric enthusiasts. AMSOIL motorcycle products deliver the power, performance and protection that every biker wants, no matter the motivation for getting on the bike.


To satisfy the demand for dirt-bike specific oil, AMSOIL developed Synthetic Dirt Bike Oil in three viscosities, including:


AMSOIL  Synthetic Dirt Bike Oil is designed to deliver consistent clutch feel and improve the performance of both bike and rider. Superior clutch consistency lets off-road (trail) riders expertly navigate trail obstacles without sacrificing momentum, helping them stay at the front of the pack. It also allows motocross racers the control needed to accurately time the gate drop to grab the holeshot.

Although clutch consistency is the main benefit of Synthetic Dirt Bike Oil, its superior performance helps riders become more accomplished and confident on their bikes through mastering new riding techniques and taking on tougher terrain. As confidence builds, riders will ride faster, better and more aggressively, leading to success on the trail for off-road riders and improved track times and more wins for motocross racers.

What Sets it Apart

AMSOIL Synthetic Dirt Bike Oil is unique in that it was developed specifically to offer a level of clutch consistency for dirt bikes that has never been pursued by other lubricant manufacturers. An extensive combination of lab and track testing and rider feedback resulted in the final formulation of AMSOIL Synthetic Dirt Bike Oil.

Reaching Dirt Bike Riders

Trail riders typically ride with friends off-road or on designated trails, and a majority of them engage in serious trail riding. Motocross riders compete in amateur races, hare scrambles and enduros and are inclined to travel long distances and spend money on their sport.


AMSOIL expanded its line of V-Twin lubricants in March 2015 to include new AMSOIL Synthetic V-twin:


20W-40 Synthetic V-Twin Motorcycle Oil

AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil was developed to cater to the increasing popularity of Victory and model-year 2013 and newer Indian motorcycles*. Because Victory and Indian enthusiasts value their individuality and the premium quality of their bikes, it’s important to them to protect their investments. AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil provides riders with the security of knowing their bike engines are protected against extreme heat, internal wear and damaging sludge and deposits.

Synthetic V-Twin Transmission Fluid / Synthetic V-Twin Primary Fluid

AMSOIL Synthetic V-Twin Transmission Fluid and AMSOIL Synthetic V-Twin Primary Fluid are purpose-built for bikers who prefer a dedicated transmission or primary lubricant over a multi-use product, offering customers more options. Together, their robust formulations protect against damage from shock-loading, premature wear, clutch slippage and thermal breakdown and deliver the confidence of smooth starts, quiet operation and more effective riding.V-Twin (MCV)

20W-50 Synthetic Motorcycle Oil

AMSOIL 20W-50 Synthetic Motorcycle Oil provides superior protection for newer V-twins, including the everpopular Harley-Davidson*, which dominates the motorcycle market and boasts loyal riders from coast to coast. In addition to being a cost-effective, high-performance alternative for original equipment manufacturer (OEM)-branded lubricants, AMSOIL Synthetic Motorcycle Oil provides superior primary chaincase, transmission and engine protection in one convenient package.

SAE 60 Synthetic Motorcycle Oil

AMSOIL SAE 60 Synthetic Motorcycle Oil is a premium oil for early model air-cooled V-twin engines specifying a 60-weight motor oil. It is specially formulated to excel in wet-clutch lubrication, extreme-pressure protection of gears and preventing rust common to short drives and storage.

What Sets it Apart

AMSOIL 20W-40 Synthetic V-Twin Motorcycle Oil is one of the only full synthetic 20W-40 motorcycle oils on the market, giving Victory and Indian riders a premium alternative to manufacturer branded semi-synthetic oils.

AMSOIL Synthetic V-Twin Transmission Fluid and Synthetic V-Twin Primary Fluid offer peace of mind and enjoyment of the ride. They also offer a secondary option for bikers who shy away from multi-use lubricants.

AMSOIL 20W-50 Synthetic Motorcycle Oil and SAE 60 Synthetic Motorcycle Oil are premium options for early and late-model Harley-Davidson riders who question the value of OEM-branded parts and accessories.


To round out the entire motorcycle oil line, AMSOIL 10W-30 and 10W-40 Synthetic Metric Motorcycle Oil (MCT, MCF) have been repackaged and reintroduced with a more specific focus on metric motorcycle applications.