well engine brake is effective only if your car is manual. in an Auto, u notice, even with the foot off the pedal, the car moves, because there is petrol being fed to the engine. Engine brake is only effective when no petrol is being fed to the engine, and the friction between the pistons and the cylinderblock walls slow the engine rpms down.Originally posted by sv3n:how come no need?isnt better if the car gradually slow down?better for the engine?less work for the brakes?![]()