Fewer and fewer Americans, especially those in the younger generations, have the skills or the interest to perform routine car maintenance themselves. For anyone thinking of investing in an oil change franchise, this is a sign of a growing business opportunity. The average age of vehicles on the road is at its highest ever—11.5 years. This means that one out of every four vehicles in the U.S. was built before the year 2000. Older cars require more routine maintenance, making it a great time to get into the oil change service industry.