In the original 4-Ball Parameter 1 test the Harley Davidson "Genuine" motorcycle oil left a wear scar of 0.40 mm while the AMSOIL 20W-50 Synthetic Motorcycle Oil left a wear scar of only 0.35 mm. The latest test results comparing the new Harley Davidson Screamin’ Eagle Syn3 to AMSOIL 20W-50 Motorcycle Oil are in. The most notable differences between the two products are in the 4-ball Parameter 3 wear test. Each of the Harley Davidson Drag Specialties motorcycle oil formulations has been optimized to help meet the unique performance characteristics demanded by motorcycle engines and thus, provide an extremely high level of performance and protection for motorcycle engines.In Industry Standard Four-Ball Wear Testing, Harley Davidson’s Own "Genuine" Motor Oil Produces the Highest Wear Scar vs. Further, Harley Davidson Drag Specialties motorcycle oils help provide outstanding protection against engine wear under high-temperature and high engine speed conditions.
As a result, synthetic formulations tend to be very shear stable and thus, provide a solid, protective oil film for engine bearings, piston rings, transmission gears and other critical engine parts.īoth Harley Davidson Drag Specialties motorcycle oil formulations offer excellent flow characteristics at low temperatures to help reduce engine wear at start-up, and provide outstanding resistance to oxidation and/or volatilization at high temperatures, both of which degrade the oil. Synthetic fluids do not require as much thickener to achieve a multigrade viscosity rating and, in some cases, do not require any thickener. These thickeners, however, can shear down and lose their thickening capacity in an operating engine or transmission. This characteristic forces manufacturers of oils to use thickeners which will help the oil maintain its viscosity as the temperature increases. For example, base oils become lighter in viscosity as temperature increase. The unique, synthetic structure of the Harley Davidson Drag Specialties motorcycle oil formulations enables them to offer advantages beyond conventional motorcycle oils of similar viscosities. Fred Fox don't sell shit! be assured by me- Mike MD CCUK. Harley Davidson Drag Specialties Spectro made 20W-50 synthetic motorcycle oil is formulated to help offer outstanding protection in 4-cycle, V-Twin type engines, particularly those which are air cooled and tend to run hotter than other types of engines. Harley Davidson Drag Specialties oil 3601-0356 Spectro V-Twin 20W-50 Oil remeber OIL is CHEAPER THAN BEARINGS!!!! I should know-!! blew my gl ide up in Austria using an inferior brand as could not get any synthetic! over £2000 later ! Not cheap and 13 hour trip in Iveco daily back to port!! dont go there!! USE IN PRIMARY CASE on big twins S&S too.
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