When Diesel Service Unit, or DSU, opened in 1945, we didn't have much in the way of assets. In fact, our first shop was set up under a tarp hung from a telephone pole. Aside from fresh Oregon air, about all we could offer our early customers was the 30 years combined experience on trucks and diesel engines of our three young mechanics.

But Wally Yost, Bill Prothero and Jim Montgomery had a philosophy of doing business that caught on. It was this: "We'll treat every customer as if we were the customer." Truck owners around the West came to know that DSU is a uniquely personal company run for trucking people.

That early spirit continues Today, 6 decades later, Wally Yost's ideas continue on. Wally as chairman of the Board, is supported by a team of officers who are not new faces at DSU, for they have worked here for many years, continuing to strive for the very highest customer satisfaction. The officers of DSU are supported by managers that have also grown with the company. So, new faces are not a problem for our long-time customers. Our managers are supported by people working for them which have also spent many years with DSU. It is the philosophy of DSU to promote from within. Now, with approximately 200 employees, we at DSU feel we are keeping up with the founders' idea of treating the customer and the customer's needs, as if we were the customer. This great idea has produced one of the best reputations in the trucking industry.

Wally Yost, Founder and CEO
Jan Yost, President
Tom Stassens, Vice President & General Manager