Idle time can add up to as much as 50% of total running time, according to industry experts. The impact of idling just 30% of the time can produce a five-year cumulative cost of $9,750! Another way to look at it: nonproductive hours of idle time can translate into one or more gallons of wasted fuel, every hour. In addition to driving up fuel costs, nonproductive machine time creates more emissions and threatens component life. Idling can also cause unnecessary fluid and filter changes and lower the resale value of your Cat equipment.