Why do Harley Motorcycle owners choose Amsoil?
I will talk about how Amsoil oil is engineered for maximum performance in V-twin engines, motorcycle transmissions, and primary chaincases.
There are several reasons why Amsoil is the best Harley Motorcycle Oil.
Protects against wear scars, and extreme heat— wet clutch compatible and it’s a cooler motorcycle oil.
The advanced synthetic formulation resists viscosity loss to keep critical components clean and protected.
For decades, Harley-Davidson recommended petroleum-based oil for its air-cooled engines.
However, recent tests show synthetic oils provide better protection.
In 2023, Harley launched its own synthetic – Screamin’ Eagle Synthetic Motorcycle Oil.
While a step in the right direction, does it really offer the best defense against wear?
Independent lab tests tell the real story.
In 150-degree C four-ball wear tests, AMSOIL Synthetic Motorcycle Oil outperformed Screamin’ Eagle by nearly 80%!
Three steel balls rotated against a fourth in each lubricant. AMSOIL’s average wear scar was significantly smaller, demonstrating superior protection.
What makes AMSOIL so effective?
Its synthetic base stocks and high-temperature additives withstand oxidation and deposits better.
Harley engines work hard, reaching 240+ degrees F in traffic.
As heat rises, petroleum and Screamin’ Eagle break down faster, reducing lubrication and increasing friction.
Contaminants like water and combustion byproducts also lead to deposits over time.
While Harley pushed regular changes to remove these, synthetics like AMSOIL stay cleaner longer.
Riders enjoy protection for more miles between services without compromising performance.
Screamin’ Eagle marketing claims it’s “tested and certified” for Harleys.
But AMSOIL has proven compatible with millions of motorcycle miles. And at $2/quart more, Screamin’ Eagle simply can’t match AMSOIL’s value.
Its filters and air filters also provide the ultimate defense for top-performing Harleys.
Between superior wear protection, lower operating temps, and extended drain intervals up to double the manufacturer’s recommendation, AMSOIL Synthetic Motorcycle Oils deliver unbeatable defense for Harley engines.
Their proven performance and protection make AMSOIL the clear choice for serious riders.
For decades, Harley-Davidson claimed their petroleum-based oil was best suited for their air-cooled engines.
However, extensive testing revealed this didn’t provide optimal protection.
Laboratory wear tests showed AMSOIL synthetic outperformed Harley’s oil by reducing wear by nearly 80%!
As the largest manufacturer of air-cooled V-twin motorcycles worldwide, Harley engines endure grueling conditions.
Being air-cooled, temperatures inside the engine compartment can exceed 240°F while riding in traffic or during strenuous operation.
At these extreme temperatures, petroleum-based oils and other synthetics rapidly break down, reducing lubricity and increasing friction.
AMSOIL synthetic motorcycle oil is engineered to maintain its viscosity and film strength even in punishing heat, keeping vital components running smoothly.
Contaminants from combustion like water, soot and acids also lead to deposit buildup over time.
While Harley pushed frequent oil changes, AMSOIL fights contaminants better to allow longer drain intervals.
Riders enjoy superior protection and performance for extra miles between services.
Formulated for compatibility with wet clutches, AMSOIL synthetic motorcycle oil is proven to protect Harley and other motorcycle transmissions.
With benefits like reduced operating temperatures, cleaner engines, maximum wear protection, and money-saving extended drain intervals, it’s no wonder so many Harley owners choose AMSOIL.
Its filters further enhance protection for top performance. Overall, AMSOIL provides an unbeatable defense to keep big Harley twins running strong.
While Harley markets their V-twin engines as unique, extensive testing shows they have standard lubrication needs that don’t require Harley-specific oil.
In truth, there’s nothing inherently better about Harley’s new Screamin’ Eagle Synthetic compared to other top synthetic formulations.
One such formulation is AMSOIL Synthetic Motorcycle Oil. Independent lab tests prove it outperforms Screamin’ Eagle when evaluating key metrics like wear protection.
Four-ball wear tests show AMSOIL reduces friction by nearly 80% over Screamin’ Eagle, demonstrating far superior protection for critical engine components.
Both oils claim versatility across different Harley components.
But only AMSOIL has a proven 30-year track record of protecting millions of motorcycle miles on all brands. Riders trust AMSOIL to keep their engines running cleaner with less friction.
While Harley pushes frequent oil changes, AMSOIL fights contaminants longer to allow safe, extended drain intervals.
This provides better long-term protection and major cost savings versus Screamin’ Eagle’s standard interval recommendation.
Between its lab-proven performance, money-saving capabilities, and widespread compatibility, intelligent Harley owners recognize AMSOIL as the top synthetic choice.
Comprehensive testing objectively shows it outperforms even Harley’s own “premium” product. In the end, test results don’t lie – AMSOIL is the clear winner.
January 31, 2003
Aaron Scanlon
AMSOIL Building
Superior, WI 54880
Dear Mr. Scanlon:
Thank you for your recent letter requesting information on Harley-Davidson’s one-year, unlimited mileage warranty when Synthetic Lubricants are used.
Until now, the Motor Company has never supported the use of synthetic products in our vehicles because there had never been any test validations completed on the numerous formulations in HD/Buell motorcycles to determine the viability of using these products on Harley-Davidson products until now.
We have developed a specially formulated synthetic fluid called SYN3. This fluid can be used in Harley-Davidson engines, transmissions, and primary chaincases. This product had been exclusively designed for Harley-Davidson and is the only synthetic product tested and certified by Harley-Davidson Engineering for use on HD/Buell motorcycles.
The use of a different brand of fluid does not void the one-year, unlimited mileage warranty unless it can be confirmed that the use of such products was the cause of the failure.
Thank you, Mr. Scanlon, for taking the time to write to Harley-Davidson and allowing me to answer your questions.
Sincerely,
Lisa Sagen
Powertrain Customer Service
The Four-Ball Wear Tests exhibit Harley-Davidson 20W-50 Motorcycle Oil (Harley Motorcycle Oil) leaves wear scars almost eighty percent larger than that left by AMSOIL Synthetic Motorcycle Oils 20W-50.
One of the primary advantages of walking the Harley Motorcycle Oil is its oxidation and thermal degradation resistance, which inhibit the formation of sludge and deposits that contribute to multiplied wear.
The Harley-Davidson Company has always defended its Harley Motorcycle Oil by arguing that oil breakdown in severe temperatures is a non-issue because excessive temperature prerequisites are no longer generally confronted in motorcycle engines.
No check validations have been finished on the numerous formulations in HD/Buell motorcycles. This product has been exclusively designed for Harley-Davidson and is the solely synthetic product TESTED and CERTIFIED.
Aid by Harley-Davidson Engineering for use in HD/Buell motorcycles.
The test I’ve shown from Amsoil is the best choice. Amsoil synthetic motorcycle oil that runs cooler and provides more protection against scaring.
So with all things considered and by comparison, the choice is Amsoil synthetic motorcycle oil for your bike today.
Combines everything needed to perform an AMSOIL oil change on most 2016-present Harley-Davidson* motorcycles in one convenient package.Five quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one chrome AMSOIL Motorcycle Oil Filter, and one drain-plug O-Ring.
Combines everything needed to perform an AMSOIL oil change on most 2016-present Harley-Davidson* motorcycles in one convenient package. Five quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one black AMSOIL Motorcycle Oil Filter, and one drain-plug O-Ring.
Combines everything needed to perform an AMSOIL oil change on most 1999-2016 Harley-Davidson* motorcycles in one convenient package. Four quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one black AMSOIL Motorcycle Oil Filter, and one drain-plug O-Ring.
Combines everything needed to perform an AMSOIL oil change on most 1999-2016 Harley-Davidson* motorcycles in one convenient package. Four quarts of AMSOIL 20W-50 Synthetic V-Twin Motorcycle Oil, one chrome AMSOIL Motorcycle Oil Filter, and one drain-plug O-Ring.
