Is it necessary to change the engine oil if a motorcycle has been left unused for half a month?

[DelAddyson]

It is necessary to change the engine oil. Engine oil stored in its original unopened bottle can last up to 5 years without issues. However, once added to a motorcycle, it begins to oxidize, hence the need for replacement. Choose engine oil with moderate viscosity: Using engine oil with excessively high viscosity in winter can easily cause damage to the vehicle. It is not advisable to blindly opt for high-viscosity oil. On the other hand, oil with too low viscosity may fail to adequately separate stationary and rotating parts, leading to rapid wear of bearings. Therefore, engine oil with moderate viscosity should be selected. More expensive engine oil is not necessarily better: The notion that more expensive engine oil is better is incorrect. Different motorcycle models have varying engine structures and are prone to different types of issues. Therefore, it is essential to follow the vehicle's maintenance manual to select the appropriate engine oil.