Page:Dorothy Levitt - The Woman and the Car.pdf/98

 allowing the car to roll down on its own impetus, controlling with the brakes, but remember, on the car slowing down, after passing the foot of the hill, to put the top gear in and switch on again, otherwise the engine may stop.

If you are driving in a very hilly or mountainous country you must give the engine a charge of oil more frequently than every twenty miles on account of its having to be on low gear, when the engine runs much faster and is liable to get over-heated—and if it does become over-heated you will soon notice a nasty "knock"—regarding which I will explain in a later chapter, on "Troubles."