09 Platinum Rui Idle 900

09 platinum core idle speed 900 is normal. Idle at 900 rpm, cold car 1500 or so, hot car 1000 or less. Engine idling performance has a great influence on emissions, fuel consumption and comfort, so engine idling performance is an important index to evaluate engine performance. When the vehicle stops to start the engine, the lowest rotation speed of the engine running stably is called parking idle speed (the process of the engine changing from the idle state of cold car to the idle state of the engine reaching the normal working temperature is called warm car or hot car). Don't step on the accelerator or loosen it when the car is in gear, and keep the minimum throttle opening.