Harley Davidson Oil Specification Common Use Cases Key Benefit PCM-2M-415 Most modern Touring, Softail, and Sportster models Ensures wet clutch compatibility and modern additive technology PCM-2 Older models pre-2000 Formulated for the friction characteristics of older drivelines Viscosity: The Temperature Dependent Factor Viscosity, denoted by numbers such as 20W-50 or 10W-60, refers to the oil’s resistance to flow at different temperatures. Understanding the specific requirements of your Harley Davidson motorcycle oil is the single most important factor in preserving the legendary performance and longevity of your V-twin.
High Mileage Harley Davidson Oil Benefits for Engine Longevity
Key Specifications to Look For When selecting oil for your Harley, you must prioritize meeting the factory specifications outlined in your owner’s manual. For older models or high-performance builds, you might encounter requirements for the older PCM-2 or specific SAE viscosity ratings.
Using a generic, off-the-shelf oil can lead to issues such as clutch slippage, excessive camshaft wear, and inadequate protection against the extreme pressures found in the transmission primary case. Full synthetic blends maintain their viscosity and protective qualities under extreme heat, resist breaking down (shear stability), and offer longer drain intervals, often up to 5,000 miles.
High Mileage Harley Davidson Oil Benefits and Performance
Why Harley Davidson Specific Oil Matters Not all motorcycle oils are created equal, and this is especially true for Harley Davidson engines. Choosing the wrong viscosity can starve the engine of lubrication or cause it to work harder than necessary.
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