Which type of leakage could potentially impair vehicle performance?

Class 2 leakage refers to a small amount of fluid that may not immediately indicate a serious problem but can still lead to performance issues over time if not addressed. This type of leakage may not be visible under normal conditions, making it easier to overlook. However, if a Class 2 leak goes unchecked, it can result in a loss of essential fluids, such as oil or transmission fluid, which are critical for the optimal functioning of the vehicle’s components. This gradual loss can eventually affect the vehicle's performance, leading to decreased efficiency and potential mechanical failure.

In contrast, Class 1 leakage is often characterized as a minor leak that typically allows fluids to pool without significantly impacting performance. Class 3 leakage indicates a more severe problem, where fluid is leaking significantly enough to affect system performance immediately. Thus, while both Class 1 and Class 3 leakage have implications for the vehicle, Class 2 is specifically noted for its potential to cause issues over time if not monitored and remedied.