That's because Union Oil is busy working with its planned maintenance customers, people who depend on the company to deliver oil year-round and be ready for any no-heat emergencies during the colder months. Summer is a busy time for taking care of some of the 28,000 customers. In order to maintain a regular schedule for its service techs and handle the workload, it is a necessity to run routine maintenance calls throughout the year.
Perhaps the key word is maintenance as opposed to cleaning. "Our boss doesn't like the word cleaning," said service tech Steve Harriman, who hosted the ride along. "The word implies that something is dirty and it may not be."