4 times allows you to scroll the diesel engine 2.5 liters in about 3-4 turns. More than 4 revolutions does not give - turns off. An ordinary low-power gasoline sedan will start, but this is not enough for a diesel. Although the instructions say that you can start a 4l diesel . I regret the money spent. The maximum that can come in handy is a flashlight and charging for a laptop on the road.