Six Reasons Motorcycles Need Better Lubricant Protection Why do people spare no expense on their vehicles, and especially accessories after the purchase, then use the cheapest engine oil they can find? Oil plays one of the most important roles in an engine’s performance, yet motorists often give it virtually no thought whatsoever. For bikers it is especially important to choose wisely when selecting a motorcycle oil, because motorcycles put greater demands on their lubricants than autos do. Here are six of the primary differences between the two. 1) Operational Speed. Motorcycles tend to operate at significantly higher engine speeds. The result is added stress on engine components, increasing the need for wear protection. It also subjects the lubricant to higher load-carrying and shear forces. Higher RPMs also promote foaming and accelerate lube breakdown due to oxidation. 2) Compression Ratios. Motorcycles tend to operate with higher engine compression ratios than