What effect does excessive oil consumption have on engine performance?

Excessive oil consumption in an engine can significantly affect its performance, particularly in relation to lubrication efficiency. When an engine consumes more oil than normal, it can lead to dilution of the oil, which can compromise its ability to effectively lubricate moving parts. This reduction in lubrication efficiency can cause increased friction, wear, and overheating, ultimately leading to decreased overall engine performance and potential engine damage over time.

Other options, such as increasing engine power, improving thermal stability, or reducing the overall weight of the engine, do not accurately reflect the consequences of excessive oil consumption. Instead, they suggest imaginary benefits that do not occur in the context of high oil consumption.