Section 55-8-167 - Coasting prohibited - Penalties(a) The driver of any motor vehicle, when traveling upon a down grade, shall not coast with the gears of the vehicle in neutral.(b) The driver of a commercial motor vehicle, when traveling upon a down grade, shall not coast with the clutch disengaged.(c) A violation of this section is a Class C misdemeanor.Acts 1955, ch. 329, § 67; T.C.A., § 59-868; Acts 1989, ch. 591, § 113.