Diesel mechanics' earnings vary depending upon their region, industry (trucking, construction, railroad), and other factors. Technicians in the West and Northeast tend to earn more than those in other regions, although these distinctions are gradually disappearing.

According to the U.S. Department of Labor (DOL), the median hourly pay for all diesel mechanics in May 2018 was $22.76, or a...

Depending on the size of the shop and whether it is a trucking or construction company, government, or private business, diesel mechanics work with anywhere from two to 20 other mechanics. Most shops are well lighted and well ventilated. They can be frequently noisy due to running trucks and equipment. Hoses are attached to exhaust pipes and led outside to avoid carbon monoxide poisoning.

With diesel technology getting better (smaller, smarter, and less noisy), more light trucks and other vehicles and equipment are switching to diesel engines. Diesel engines are already more fuel-efficient than gasoline engines. Also, the increased reliance by businesses on quick deliveries has increased the demand on trucking companies. Many businesses maintain lower inventories of materials, i...