The document discusses the impacts of new vehicle technology, noting that it can help reduce pollution when properly used and maintained, but can cause issues like decreased fuel economy and downtime if not properly handled. It emphasizes the need to educate drivers, dispatchers, and technicians on monitoring vehicle systems and not ignoring issues. Charts show average vehicle age has risen nearly a year over the last decade, while mileage patterns and residual values have remained consistent with previous technology. Each new generation of EPA compliant engines has improved but also increased maintenance costs and downtime due to greater complexity challenging drivers and technicians.