What is the starting RPM of a car?
2 Answers
Car starting RPM is between 1200 and 1500. Causes of car shaking during start-up: 1. The vehicle may shake when the clutch is released to the semi-engaged position; 2. Poor coordination between throttle and clutch; 3. Insufficient engine power; 4. Loose connection between the transmission and chassis; 5. Uneven contact between the clutch pressure plate and friction disc; 6. Dirty throttle body or excessive carbon deposits on the fuel injectors; 7. Worn engine mounts. Hazards of car shaking during start-up: 1. Aggravates carbon buildup in the engine; 2. Causes poor ignition and spark plug misfiring; 3. Accelerates aging of engine components. Solutions for car shaking during start-up: 1. Control the clutch at the optimal engagement point; 2. Replace the pressure plate and friction disc.
I've been driving for over a decade, and I'd say an ideal starting RPM is around 1500, whether it's a manual or automatic transmission. With manual transmissions, you need to gently press the accelerator while finding the balance point with the clutch—too low RPM can cause stalling, while too high wastes fuel or even damages the engine. Normally, when I start the car, the RPM is higher at around 2000 when the engine is cold, then drops back to normal after warming up. In city traffic, starting from a red light should be controlled between 1000-1800 RPM—being too aggressive increases the risk of rear-end collisions or fuel consumption. I usually adjust my pedal pressure by watching the tachometer. Occasionally, starting on a steep slope may require up to 2000 RPM, but overall, maintaining smoothness is most important for both driving safety and engine longevity.
