![harley transmission oil harley transmission oil](https://m.media-amazon.com/images/I/51veFEvj72L._AC_SX355_.jpg)
The ASTM D-1748 Rust Test measures a lubricant’s ability to protect against rust and corrosion. AMSOIL Synthetic Motor-cycle Oils are formulated with specialized additive technology that not only protect against corrosion and acids during operation, but also provide exceptional protection during storage. Corrosion protection during storage and in humid conditions is essential to extending equipment life. Most motorcycles spend the majority of their lives either parked or in storage, but most motorcycle oils fail to address corrosion problems. AMSOIL Synthetic Motorcycle Oils meet the clutch compatibility requirements mandated by JASO MA.
![harley transmission oil harley transmission oil](https://assets.suredone.com/683955/media-photos/96900-bbff5af7f3843ecffc974b535f870887807ee27b.jpeg)
AMSOIL Synthetic Motorcycle Oils are formulated without friction modifiers, providing positive clutch engagement, longer equipment life and reduced temperatures. Slippage leads to increased operating temperatures and reduced clutch life. The friction modifiers present in many automotive motor oils and the extreme pressure additives present in EP gear lubricants produce a low coefficient of friction between the clutch discs and plates, resulting in clutch slippage and glazing. Many motorcycles utilize a clutch that is immersed in the motor oil. They provide the best high temperature viscosity protection, giving motorcycle owners peace-of-mind during extensive idle times or when riding in hot weather conditions. The more resistant an oil is to high temperature viscosity loss, the better it protects, and even a HTHS difference of 0.1 cP makes a significant difference.ĪMSOIL Synthetic Motorcycle Oils exhibit the highest HTHS viscosities of competing synthetic and conventional motorcycle oils. The High Temperature/High Shear (HTHS) Test (ASTM D-4683) measures a lubricant’s viscosity under severe high temperature and shear conditions. The high temperatures and tight tolerances common to motorcycle applications also affect viscosity. These independent and exclusive AMSOIL formulations provide second-to-none viscosity protection for hot-running Harley Davidson engines, transmissions and primary chaincases. AMSOIL Synthetic Motor Oils for Harley DavidsonsĪMSOIL Synthetic Motorcycle Oils are formulated with premium synthetic base stocks and high performance additive technology that provide superior multi-functional benefits for the special requirements of motorcycle applications. AMSOIL recommends MCV motorcycle oil for this common sump. Ironhead & Evolution Sportsters use one sump for both transmission and chain case. New seals are recommended where excessive leaking exists. AMSOIL recommends SVG as an alternative oil for the transmission, and SVO as an option for older transmissions. In the Evolution 1340, Big Twins 1450, and V-Rods, AMSOIL recommends MCV 20W-50 motorcycle oil in all 3 holes (engine, transmission, and primary chain case). Of these models only the Shovelhead has a chain case that is lubed, and is fed by the engine oil. Use AMSOIL SVG or SVO for the transmissions. AMSOIL recommends AHR SAE 60 or MCV 20W-50 motorcycle oil for all these older models. Harley Davidson recommends SAE 50 or 60 for the engine oil in their Flathead, Knucklehead, Panhead, and Shovelhead. Harley Davidson has manufactured 9 types of engines from 1929 to the current model. Evolution 1340 - Big Twins 1450 - Revolution / V-Rods