Is driving at 40 km/h frequently harmful to the car?
2 Answers
Driving at 40 km/h frequently is harmful to the car. Reasons for the harm: If the vehicle runs at low speed for a long time, the engine cannot deliver the corresponding power, which affects the combustion efficiency of gasoline in the engine cylinder, leading to the formation of a large amount of carbon deposits that adhere to the throttle valve, fuel injector, and engine combustion chamber. The formation of a large amount of carbon deposits further affects the engine's power performance, ranging from reduced acceleration to severe cases of burning engine oil; long-term low-speed operation of the engine can easily lead to the generation of a large amount of carbon deposits, significantly affecting performance. Solutions: Visually inspect whether there is oil, water, or hardening on the front wheel brake discs and pads; if the brake discs and pads are normal, check each brake cylinder for oil leakage, whether the brake caliper fixing plate is loose, and whether the friction pads have difficulty returning to position, among other phenomena.
I have experience with driving, and maintaining a speed of 40 km/h generally doesn't pose major issues for modern cars, as their engines are designed to be quite durable. However, prolonged low-speed driving can lead to minor problems, with carbon buildup being the primary concern. Incomplete fuel combustion can leave black residue in the engine, which over time may reduce performance and increase fuel consumption. Additionally, for automatic transmission vehicles, consistently low RPMs can prevent the transmission fluid from reaching optimal temperature, potentially affecting lubrication. Although I often find myself stuck at 40 km/h during city commutes, I make it a habit to take the car on the highway weekly under good road conditions to rev the engine higher and clear out carbon deposits. This approach keeps my car in excellent condition.
