A planned schedule seems much easier to manage when several vehicles are involved. I was looking at how fleet operators organize maintenance and checked https://drivertires.com/fleet-services/ to see what kind of support is available for businesses. What makes sense to me is combining routine inspections with the mileage and service intervals of each vehicle rather than waiting until something fails. A fleet can have tires, brakes, oil, suspension, and other components reaching service points at different times, so keeping records is important. It also helps managers plan when vehicles can be taken off the road instead of discovering a problem during a busy workday. For a business that depends on its vehicles every day, predictable maintenance seems much easier to work with than unexpected repairs.