What are the effects of adding a full 4L of engine oil during maintenance?

1 Answers
CharlotteDella
07/29/25 1:29pm
Adding a full 4L of engine oil during maintenance can affect fuel consumption and engine performance. Here is an introduction to the related aspects of engine oil: 1. Increased fuel consumption: When adding engine oil, the oil level should be between the upper and lower marks on the dipstick. If too much oil is added, the oil volume will expand as the engine temperature rises, increasing the pressure in the oil chamber and the running resistance, which can lead to reduced engine power and increased fuel consumption. 2. Overfilling oil: If too much oil is added, the crankcase breather pipe may leak oil, and the increased crankcase pressure can loosen the oil seals due to the oil pressure, leading to oil leaks. 3. Heat dissipation: Overfilling engine oil can affect the engine's heat dissipation.
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