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Don’t Just Choose Any Oil. Make it Official.

Motorcycles are expensive and they take a lot of money to keep going. You want to buy the best synthetic motor oil for your motorcycle. The superior protection and performance of AMSOIL Synthetic Motorcycle Oil is recognized by the largest and most influential motorcycle rallies in the nation. The Sturgis Motorcycle Rally, Daytona Bike Week, Laconia Motorcycle Week, Biketoberfest and the Lone Star Rally all proudly feature AMSOIL as their Official Oil. AMSOIL shares your passion for riding. From the kickoff to the motorcycle season in Daytona to the year’s closing rally in Galveston, AMSOIL is proud to lend its support to the motorcycle lifestyle.

Dyno Tested

Protection against extreme heat is of the utmost importance in motorcycle applications. The air-cooled V-twin engines used in Harley-Davidson motorcycles can get extremely hot, particularly when idling or traveling at low speeds. If a motorcycle oil cannot withstand hot operating temperatures, its ability to provide adequate engine protection is compromised. AMSOIL Synthetic Motorcycle Oil is formulated to withstand extreme heat conditions beyond the hottest temperatures motorcycles typically experience, providing peace of mind that motorcycles receive outstanding protection and performance no matter how extreme the operating conditions.

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Why Is Synthetic Oil Better for Your Harley-Davidson Motorcycle?

Synthetic motor oil offers many advantages for the big bore Harley-Davidson motorcycles.

Aside from being air-cooled, Harley big bores tend to run higher cylinder temperatures because of the long stroke and comparatively smaller bore which increases the swept area in the cylinder and piston speed for any given RPM. Big twins that are operated in the southern areas of the country where outside temperatures are higher or are used in a lot of stop and go city driving will see elevated temperatures, especially in the rear cylinder. All of these factors put increased demands on the engine oil. Compared to conventional petroleum oil, synthetic motorcycle engine oil offers many advantages. High grade synthetic oils manufactured from PAO (Polyalphaolefins) base stocks offer dramatically better wear protection and excel in high and low temperature extremes. In cold temperatures, synthetic motor oils provide near instant oil pressure and easy cranking during starts.

At high operating temperatures conventional petroleum oil can oxidize, causing increased wear with sludge and deposit formation. On the other hand, synthetic oil's uniform molecular structure is stable and resistant to breakdown leading to cooler operation and preventing sludge and carbon deposits. Synthetic motor oils dissipate heat faster often dropping cylinder temperatures twenty to fifty degrees. Synthetic oils help maximize fuel economy and increase horse power by reducing friction and drag considerably compared to conventional oils. Synthetic oils such as AMSOIL high performance synthetic motorcycle oil also offers the benefit of longer change intervals of up to twice the manufacturer’s recommended change interval or one year, whichever comes first. As a result, adding an element of convenience to the purchase of synthetic motorcycle oil.

Videos: V-Twin Tips

V-Twin Motorcycle Heat Tips
52/52 Performance Tuning Discusses AMSOIL Motorycle Oils

AMSOIL Motorcycle look-up

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FlatheadBestSecondary
Engine
SAE 6020W-50
Transmission
SAE 60MVT
Synthetic V-Twin Transmission Fluid
KnuckleheadBestSecondary
Engine
SAE 6020W-50
Transmission
SAE 60MVT
Synthetic V-Twin Transmission Fluid
PanheadBestSecondary
Engine
SAE 6020W-50
Transmission
SAE 60MVT
Synthetic V-Twin Transmission Fluid
ShovelheadBestSecondary
Engine
SAE 6020W-50
Transmission
SAE 60MVT
Synthetic V-Twin Transmission Fluid
Evolution 1340 - Twin CamBestSecondary
Engine
20W-50--
Transmission
20W-50MVT
Synthetic V-Twin Transmission Fluid
Primary Chain Case
20W-50MVP
Synthetic V-Twin Primary Fluid
Ironhead - Evolution Sportsters / V-RodsBestSecondary
Engine, Transmission / Chain Case
20W-50--

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AMSOIL Cross Reference
Harley-Davidson Part #
AMSOIL Product
99816-60 HD Engine Oil
MCS SAE 60 Engine Oil
MCV 20W-50 Engine Oil
99851-05 Formula
MCV 20W-50 Engine Oil
99824-03 Screamin Eagle Syn 3
MCV 20W-50 Engine Oil
99887-84 Primary Lube
MCV 20W-50 Engine Oil
99892-84 Transmission Lube
MVT Synthetic V-Twin Transmission Fluid
MCS SAE 60 Engine Oil
99896-88 Sport-Trans Fluid
MCV 20W-50 Engine Oil
MVI 20W-40 Engine Oil
99880-73 Type B Fork Oil
STM #10 Suspension Fluid
99884-80 Type E fork oil
STM #10 Suspension Fluid

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Blog Title: Guide to AMSOIL for Harley-Davidson
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