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Idle speed, sometimes simply called "idle", is the rotational speed an engine runs at when the engine is idling, that is when the engine is uncoupled from the drivetrain and the throttle pedal is not depressed. In combustion engines, idle speed is generally measured in revolutions per minute (rpm) of the crankshaft.
Maintaining an efficient speed is an important factor in fuel efficiency. [9] [10] Optimal efficiency can be expected while cruising at a steady speed and with the transmission in the highest gear (see Choice of gear, below). The optimal speed varies with the type of vehicle, although it is usually reported to be between 35 and 50 mph (56 and ...
You may idle while waiting in a drive-through line, picking up a curbside order or dropping off the kids at school or when you're stuck in standstill traffic. Though idling is common, it's not ...
Idle creep, sometimes called idle speed or just creep [citation needed] is the default speed that a vehicle with an automatic transmission will move either forward or in reverse when the change lever is in D for drive or R for reverse and the foot is taken off the brake pedal but the accelerator pedal is not depressed.
Letting a car idle requires more time for the vehicle to warm up and allows excess fuel to get into the engine, which isn't good for wear and tear.
The same rims can usually be used throughout the lifetime of the car. Other problems encountered in tire maintenance include: Uneven or accelerated tire wear: can be caused by under-inflation, overloading or poor wheel alignment. Increased tread wear on only one side of a tire: often a sign of poor wheel alignment.
It may also be seen as driving the vehicle at a higher speed than the idle speed of the engine and then disengaging the engine from the wheels by setting the transmission or gearbox to neutral position or disengaging the clutch, maintaining the engine in idle mode. [5] [6] [7]
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