Using thicker motor oil in a motorcycle can offer several potential benefits, depending on the specific circumstances and requirements of the motorcycle. Here are some advantages associated with using thicker motor oil:
Enhanced Engine Protection: Thicker motor oil typically provides better lubrication and forms a stronger protective film between moving parts. This can be beneficial for high-performance or older motorcycles with looser tolerances, as the thicker oil can help reduce friction and wear on engine components, providing better protection against metal-to-metal contact.
Reduced Oil Consumption: Thicker oil tends to have higher viscosity, meaning it is less likely to thin out or evaporate at high temperatures. This can help reduce oil consumption in motorcycles that are prone to burning or leaking oil. Thicker oil may also be less prone to foaming, which can affect lubrication efficiency.
Improved Heat Dissipation: Thicker oil has the potential to absorb and dissipate heat more effectively than thinner oil. This can be advantageous in motorcycles that operate under high-stress conditions, such as heavy loads, extended high-speed riding, or in hot climates. The increased viscosity can help maintain oil pressure and prevent thermal breakdown, promoting better overall engine performance.
Compensation for Worn Engine Components: In some cases, older or high-mileage engines may experience increased clearances between components due to wear. Thicker oil can compensate for these larger clearances by providing a thicker cushioning layer, which can help maintain oil pressure and prevent excessive wear or noise.
Very thick oil can result in increased resistance, reduced flow, and poor cold-start performance. It may also strain the engine's oil pump, leading to decreased efficiency.
To determine the most appropriate motor oil viscosity for your motorcycle, it is recommended to consult the manufacturer's recommendations in the owner's manual or seek the advice of a knowledgeable mechanic who understands the specific requirements of your motorcycle model. The manufacturer's recommendations are typically based on extensive testing and are tailored to provide optimal performance and protection under normal operating conditions.