Using synthetic oil in an old motorcycle can have both advantages and considerations that need to be taken into account. Here are some points to consider:
Advantages:
Improved lubrication: Synthetic oils typically have better lubricating properties than conventional oils. They offer superior protection and reduce friction, which can be beneficial for the engine, especially in high-stress situations or during extreme temperatures.
Enhanced engine cleanliness: Synthetic oils often have better detergent and dispersant properties, which can help keep the engine cleaner by preventing sludge and deposits from building up. This can be advantageous for older motorcycles that may have accumulated deposits over time.
Extended oil change intervals: Synthetic oils generally have a longer lifespan compared to conventional oils. They can withstand higher temperatures and have better resistance to breakdown, which may allow for extended oil change intervals. This can be convenient for older motorcycles that may not have frequent oil changes.
Considerations:
Leaks: Older motorcycles may have worn seals and gaskets that were designed for conventional oil. Synthetic oils have different flow characteristics, which may increase the likelihood of leaks. It is recommended to closely monitor for leaks after switching to synthetic oil and address any issues promptly.
Clutch compatibility: Some older motorcycles use a wet clutch system that relies on friction between the clutch plates. Synthetic oils with certain additives or formulations may reduce friction too much and result in clutch slippage. It's important to check the motorcycle's manufacturer recommendations regarding oil viscosity and compatibility with wet clutches.
Cost: Synthetic oils generally come at a higher price point compared to conventional oils. If your old motorcycle doesn't require the specific benefits of synthetic oil, using a high-quality conventional oil may be a more cost-effective option.
Ultimately, the decision to use synthetic oil in an old motorcycle depends on factors such as the motorcycle's condition, usage patterns, manufacturer recommendations, and personal preferences. Consulting the owner's manual, seeking advice from experienced mechanics, or reaching out to motorcycle forums and communities can provide valuable insights specific to your motorcycle model.