What damage does revving the engine in neutral do to the car?
2 Answers
Revving the engine in neutral does not cause any harm to the car. However, if you floor the accelerator immediately after starting the car, it can cause significant damage. Below are some driving precautions: Pre-departure check: Conduct a comprehensive inspection of the vehicle every day before setting off, including checking for oil or coolant leaks, measuring tire pressure to ensure it is appropriate, inspecting the engine oil condition to verify its color is normal and the oil level is correct. Safe driving: Always use seat belts correctly, as they provide protection comparable to airbags in the event of a severe collision. Avoid fatigue driving and take breaks every 2 hours.
Revving the engine in neutral is a really bad habit, harmful to the car and wasteful of money. When the engine suddenly spins at high speed without load, components like pistons and connecting rods instantly bear tremendous impact forces, and the lubrication system can't keep up, leading to accelerated wear. Especially when the engine is cold and the oil hasn't fully circulated, stomping on the gas like this can easily scratch the cylinder walls. Moreover, at high RPMs, the engine produces harsh noises, and vibrations spread throughout the entire vehicle body; over time, even the mounting bolts can loosen. The biggest waste is fuel consumption—one hard press of the accelerator can consume as much fuel as driving normally for two kilometers. I've seen someone spend thousands on engine repairs, all because of long-term abuse like this.
