+60T40 MAINTENANCE IS TRENDING UP 40% performed maintenance 60% unperformed maintenance 11.7 years The average age of light vehicles in use. Source: IHS Markit Across all vehicles, nearly 40 percent (38.8) of drivers performed scheduled maintenance per their owners' manuals last year. Source: IMR, Inc. 48% Vehicles older than 11 years comprise 48.5 percent of total light vehicles. Source: IMR, Inc. 23 23