What is the engine speed?
2 Answers
Engine speed ranges between 1000 and 3500 RPM. Around 3000 RPM, the engine reaches its peak torque output, after which torque decreases inversely with speed. The reasons for high engine speed include: 1. Sudden increase in throttle opening; 2. Fuel injector leakage or clogging; 3. Slippage or damage to the air conditioning clutch; 4. Air intake system leakage; 5. Insufficient engine power output. Solutions for high engine speed are: 1. Adjust the throttle opening; 2. Replace the fuel injector, air conditioning clutch, intake system, or engine. The function of the engine is: to convert the thermal energy of gasoline or diesel into mechanical energy by burning the fuel in a sealed cylinder, causing gas expansion that drives the piston to perform work.
When driving, I always pay attention to the engine RPM thing. RPM means how many revolutions the engine makes per minute, usually expressed in RPM. At idle, my car usually hovers around 700 to 1000 RPM, and it's normal for it to be slightly higher when the AC is on. When accelerating, the RPM can surge to over 2000 or even 3000 RPM, especially on the highway—just be careful not to keep it too high for too long, as it wastes fuel and harms the engine. During cold starts in winter, the RPM might be higher initially, but it drops after a minute or two. If the RPM fluctuates erratically, there might be an issue with the ignition system or air filter, so it's best to get it fixed promptly. I think maintaining 1500 to 2500 RPM during everyday driving is the most stable—safe and worry-free—and avoid constantly flooring the accelerator.
