In a grant categories of maintenance are given short characteristic of the GAZ-53A, GAZ-66, ZIL-130, ZIL-131 trucks and trailers to them. Particular attention is paid to the recognition and elimination of malfunctions of components and mechanisms that most often occur on the road, and driving in difficult road conditions. The characteristics of automobile fuel, lubricants and technical fluids are given recommendations for their selection and use. Designed for novice drivers.