How Many Liters of Fuel Does a 245-Horsepower Engine Consume at Idle for One Hour?
2 Answers
245-Horsepower Engine Consumes Approximately 3 to 5 Liters of Fuel per Hour at Idle. Below are the relevant details: 1. Introduction to Idle: Idle is an operational state of a vehicle where the engine runs without engaging any gear. The engine speed during idle is referred to as the idle speed. Idle speed can be adjusted by modifying the throttle opening size, among other methods. Idle essentially means the engine is 'producing power without doing work.' 2. Definition of Idle: Idle refers to the engine running without any load, only overcoming the internal friction resistance of its components, without delivering any external power. The minimum speed required to maintain stable engine operation is called idle speed, which is one of the five fundamental operating conditions of an engine. A well-functioning engine typically has an idle speed ranging from 550 to 800 RPM.
I've driven several cars with over 200 horsepower, and idle fuel consumption is a common issue. Generally, a 245-horsepower engine consumes about 1.5 to 2 liters of fuel per hour at idle, depending on the model; SUVs or sports cars with larger displacements may approach 2 liters. Factors influencing this include engine condition, ambient temperature, whether the air conditioning is on, and the vehicle's maintenance level. If the engine oil is too old or the spark plugs are dirty, fuel consumption may rise to around 2.5 liters. I remember recording idle data with the onboard display, fluctuating around 1.7 liters per hour. To avoid waste, I recommend minimizing prolonged idling; this not only saves fuel and money but also prevents carbon buildup and emission pollution. Modern cars consume less fuel when starting, so turning off the engine if parked for more than 30 seconds is wiser. Overall, based on my experience, an average of 1.8 liters of fuel per hour at idle for a 245-horsepower car is a reliable reference, but actual testing is needed for verification.
