Preventative maintenance includes the regular maintenance tasks necessary to ensure that a vehicle operates at peak performance. The schedule for these services can depend on the manufacturer and the driving conditions under which the truck operates. Semi-truck manufacturers provide information on the recommended intervals for performing maintenance to get the best results, and it's best to follow these guidelines to get the most out of your fleet. Over or underperforming maintenance tasks can be costly, so it's worth your time to follow the recommended maintenance schedule. There are so many benefits to implementing a preventative maintenance plan.