This increased resistance, or drag, forces the engine to work harder to rotate its internal components. This forces the oil pump to work harder and longer to circulate the oil throughout the engine, putting extra stress on the battery and starter motor.
20w40 Oil Misuse: Separating Common Rider Myths From Real Engine Risks
At startup, especially in temperatures below freezing, this thicker oil flows more slowly, delaying the crucial lubrication of critical engine components. The oil may not properly lubricate the intricate valvetrains, leading to noisy tappets and potential valve wear.
The result is a measurable decrease in fuel efficiency, as more energy from the combustion process is required to overcome the viscous drag of the oil rather than being translated into forward motion. A compromised oil film leads to metal-on-metal contact, which is the primary cause of engine wear.
20w40 Oil Misuse Common Rider Myths and Real Consequences
When an oil film breaks down, it is said to have "sheared," losing its viscosity and lubricating properties. While 20w40 motorcycle oil is a popular choice for many riders, particularly in warmer climates or for older engines, it is not a universal solution and comes with distinct disadvantages.
More About 20W40 motorcycle oil disadvantage
Looking at 20W40 motorcycle oil disadvantage from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on 20W40 motorcycle oil disadvantage can make the topic easier to follow by connecting earlier points with a few simple takeaways.
