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AMSOIL vs. Mobil 1

409,000-Miles Without An Oil Change

AMSOIL Excels in API Sequence IIIF Performance Test

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Temperature Extremes Call For Superior Motor Oils

Why Harley-Davidson Owners Choose AMSOIL

Synthetic Motorcycle Oil & Harley-Davidson Warranty Issues

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

Motor Oil Test and Comparison

8.2% More MPG With AMSOIL Synthetic Lubricants

AMSOIL Proves Superior In Clark County Field Test

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil is Correct Choice for Jeff Foster Trucking

AMSOIL Products Improve Efficiency and Reduce Operating Costs for Gerlach Trucking

What is the Noack Volatility Test?

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AMSOIL High Performance Synthetic Motorcycle Oils

Superior Wear Protection for Motorcycles

Run cooler! Reduce crankcase temperature. AMSOIL Synthetic Motorcycle Oils deliver maximum protection, power and fuel efficiency for all makes of motorcycles. Recommended for all V-Twin and other motorcycle engines. Superior 12+ TBN synthetic formulation provides long service life and maximum protection against engine wear. Superior anti-wear and detergent/dispersant packages. AMSOIL Synthetic Motorcycle Oils contain no friction modifiers and are wet clutch compatible.


AMSOIL 10W-40 Synthetic Motorcycle Oil

AMSOIL 10W-40 Synthetic Motorcycle Oil

AMSOIL Synthetic Motorcycle Oils have been reformulated with new high performance additive technology that provides even greater multi-functional benefits for the special requirements of motorcycle applications. These independent and exclusive new AMSOIL formulations provide second-to-none viscosity protection for hot-running American and foreign motorcycle engines, transmissions and primary chaincases. Product Code: MCF (more info)

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AMSOIL 20W-50 Synthetic Motorcycle Oil

AMSOIL 20W-50 Synthetic Motorcycle Oil

AMSOIL Synthetic Motorcycle Oils have been reformulated with new high performance additive technology that provides even greater multi-functional benefits for the special requirements of motorcycle applications. These independent and exclusive new AMSOIL formulations provide second-to-none viscosity protection for hot-running American and foreign motorcycle engines, transmissions and primary chaincases. Product Code: MCV (more info)

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AMSOIL Motorcycle Oil Filters

AMSOIL Motorcycle Oil Filters

AMSOIL Motorcycle Oil Filters reflect the newest technological advances in the quest to meet the unique demands of today’s high-stress motorcycle engines. (more info)

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AMSOIL Motorcycle Air Filters

AMSOIL INC. revolutionized the filtration industry with its introduction of AMSOIL Ea Air and Ea Oil Filters. For the first time exclusive nanofiber technology – the same technology used in the Abrams M1 tank and other heavy duty applications – is now available for motorcycles. (more info)

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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.

 
  • Runs cooler - reduces crankcase temperature.
  • Superior 12+ TBN synthetic formulation provides long service life and maximum protection against engine wear.
  • Wet clutch compatible.
  • Recommended for all V-twin and other motorcycle engines.

The AMSOIL Advantage
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 motorcyle 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 antiwear and detergent/dispersant packages with no friction modifiers, keeping motorcycles running smoothly and efficiently, while allowing for extended drain intervals of up to twice the manufacturers' recommendations.

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

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

As seen in the graph, none of the popular motorcycle oils compared favorably to the AMSOIL motorcycle oils in wear protection.

Click on photos to enlarge

CLICK TO ENLARGE PHOTO
CLICK TO ENLARGE PHOTO

AMSOIL Synthetic Motorcycle Oils contain significantly higher levels of zinc and phosphorus than competing oils, and while simply adding more zinc and phosphorus doesn't insure good performance, AMSOIL has formulated motorcycle oils with the best additives in the optimal quantities to provide superior wear protection.

A Four-Ball Wear Test was conducted at 302°F/150°C, a higher temperature that would typically be associated with motorcycle oil operating temperatures in extreme high-performance situations. AMSOIL motorcycle oils protect better in higher temperatures than any of the tested motorcycle oils do, leaving a wear scar up to 80 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.

 

AMSOIL 20W-50 Synthetic Motorcycle Oil vs. Harley-Davidson Screamin' Eagle Syn3 20W-50 Synthetic Motorcycle Oil

The introduction of Screamin' Eagle Synthetic Motorcycle Oil by Harley-Davidson signaled the Motor Companies acceptance of synthetic lubricants as superior performing products for their motorcycles. However, Harley-Davidson V-twin air cooled engines are not so unique in their lubrication requirements that they require a special Harley-only fluid. In fact, Four-Ball Wear Test results indicate that AMSOIL 20W-50 Synthetic Motorcycle Oil leaves a wear scar 40 percent smaller than Screamin' Eagle Syn3 20W-50 Synthetic Motorcycle Oil.

According to Harley-Davidson, one of the unique benefits offered by Screamin' Eagle Synthetic Motorcycle Oil is its versatility, recommending its use in the engines, primary chaincases and transmissions of most Harley-Davidson motorcycles, including Evolution XL, Evolution 1340, Twin Cam 88 and 88B, Revolution and Buell models. This feature, however, is not unique. AMSOIL 20W-50 Synthetic Motorcycle Oil may also be used in the engines, primary chaincases and transmissions of these applications, providing superior lubricating protection in each component.

 

AMSOIL Motorcycle Oil Filters

AMSOIL Shock Therapy Synthetic Fork/Suspension Fluids

AMSOIL Motorcycle Air Filters


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