V-Twin And Big Bikes

Wow !!! Harley Does A 180 On Synlubes - Check It Out !!!

Also See Related Article: What About Roller Bearings In A Big Bike Motor?

New AMSOIL Synthetic Motorcycle Oils (MCV & MCF) Provide
Superior Transmission and Rust Protection

Benefits of the two new oils include Improved Transmission Protection, Excellent Wet Clutch Performance, Excellent Corrosion Protection, Outstanding Heat Resistance,· Robust Additive Levels, & Excellent Value for Cost Effective Performance.

Click on the links below for complete product information.

New Amsoil (MCF) 10W-40 and New Amsoil (MCV) 20W-50

AMSOIL Synthetic 20W-50 and10W-40 Motorcycle Oils
Superior Wear Protection for Motorcycles.

AMSOIL Synthetic Motorcycle Oils

AMSOIL synthetic 10W-40 and 20W-50 motorcycle oils give motorcyclists what they need: superior wear protection for high-stress motorcycle engines and transmissions and clutches that stay clean and deposit-free.

Motorcycle manufacturers want the best protection possible for their equipment, calling for rugged oils that exhibit high temperature deposit control additives. AMSOIL Synthetic Motorcycle Oils are specially formulated with the best synthetic basestocks and high performance additives to provide tough lubricating protection for all four-cycle motorcycle and ATV engines in the most demanding operations. 

AMSOIL Motorcycle Oils are formulated for both water-cooled engines and the unique demands presented by air-cooled V-twin motorcycle engines, including Harley-Davidson. Conventional petroleum oils break down and oxidize when faced with high temperatures, such as those experienced when idling in traffic, contributing to the formation of deposits, sludge and varnish.  AMSOIL withstands oil breakdown and oxidation in high temperatures, holds contaminants in suspension and keeps engines running cool and clean. 

Zinc and phosphorus additives are extremely important to engines faced with high-pressure conditions, especially motorcycle engines, which typically have steep cam slopes, creating high pressure between the parts. In motorcycles, friction modifiers (prevalent in automotive oils) have been attributed to engine start failures, a rough running feel, increased fuel consumption due to higher engine stall speeds and other problems.  AMSOIL Synthetic 10W-40 and 20W-50 Motorcycle Oils have beefier anti-wear and detergent/dispersant packages with no friction modifiers, keeping motorcycles running smoothly and efficiently, while allowing for extended drain intervals of up to three times longer than manufacturers' recommendations.

How do other motorcycle oils compare to AMSOIL Synthetic Motorcycle Oils in wear protection? 

WEAR PROTECTION

AMSOIL submitted five popular motorcycle oils to spectrographic analysis and Four-Ball Wear (ASTM D 4172) testing and compared the results to those of AMSOIL Synthetic 20W-50 and synthetic 10W-40 Motorcycle Oils. 

None of the popular motorcycle oils compared favorably to the AMSOIL products in wear additive content or wear protection.
(See Spectrographic Analysis chart And Wear Protection Graph). 

What about oil temperature and wear? A Four-Ball Wear Test was conducted at 302F/150C, a higher temperature than would typically be associated with motorcycle oil operating temperatures in extreme high performance situations. AMSOIL products protect better in higher temperatures than any of the tested motorcycle oils do, leaving a wear scar up to 37 percent smaller. 

Some motorcycle transmissions and engines share a common oil sump, so the engine oil must also provide wear protection to the transmission gears, which, according to Motorcycle Consumer News (Aug.1998) are subject to high gear surface pressures and gear rotation speeds.  The superior performance of the AMSOIL Motorcycle Oils in the Four-Ball Wear Test applies here, too.

 Motorcyclists will find no better oils than AMSOIL Synthetic Motorcycle Oils.