Base oils are the primary lubricant in motor oil, and represent 80-90 percent of the total package after oil additives have been mixed in.

The flood of new technology shows no sign of letting up, so an early start is the best way to keep your head above water.

Many shops founded their business upon working only on one type or the other. Their decision simplified matters – it was unnecessary to keep more than one set of specialized fasteners or tools in inventory.

Challenging a thorny diagnostic problem might be, however satisfying a really difficult or unusual no-start, it is the bread and butter work that distinguishes a business from a hobby.