Engine Brake Power Consumption

Fuel

You probably know that driving in a neutral gear (in the back) is extremely unsafe, but you probably don't know that using motor braking consumes less fuel than when you drive in the back.

Engine Brake Power Consumption

Do you know that fuel consumption is when you use the engine brake equal to zero!? When it is Transmission at speed, and the gas released, the fuel is not wasted. This applies to all new generation cars manufactured in the last ten years, that is, to all cars that have electronic fuel injection controls, regardless of fuel type.

When the accelerator pedal is released, the computer that controls the fuel injection closes the fuel supply to the engine. Transmission it connects the engine and the wheels as follows: while driving, the engine is transmitted to the blade, and from there the power is transmitted to the wheels through the transmission. When we use motor braking, the situation is reversed: the engine is not fueled, but the inertia of the wheel is transmitted to the engine via gearbox and slats. This allows the engine to run without fuel, already driven by inertia-driven wheels.

Fuel consumption in the back

Unlike engine braking, when the transmission is in the back, the engine is fueled. Consumption is low then, but it still exists. This consumption is measured per hour and averages about 0,8-1,2 liters of fuel per hour.

When the engine is running, it starts some other devices: alternator, compressor, water pump k Each of these devices carries part of the engine power and thus increases fuel consumption. It is known that air conditioning increases consumption by some 1-1,5 liters per 100 kilometers traveled. Since we have concluded that no fuel is consumed during engine braking, we can conclude that we are cooling down completely free of charge!

The video shows this driving situation. We can see:

1. fuel consumption while the car is driving normally
2. fuel consumption when the transmission stays in gear but the gas is released
3. fuel consumption when we kick the transmission out of gear

Source: www.auto-delovi.org

Mladen

Hi there, I am Mladen and I am an auto enthusiast. I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Ping us if you have anything cool to share on latest cars or on how to make older cars more efficient, or just want to say hi!