How much gas is used idling? Understanding the impact of idling on fleet operations

August 4, 2025

Samsara graphic showing a green delivery truck with engine icon on blue background, explaining vehicle idling impact.

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Key Takeaways

Engine idling happens when a vehicle’s engine runs while the vehicle is stationary. During this time, fuel is consumed to keep the engine and auxiliary systems running, but no useful work, like vehicle movement, is done. This leads to wasted fuel, increased emissions, and higher operational costs. We’ll explain what idling is so you can see exactly how much gas is used. We’ll also explore how technology solutions like Samsara help reduce idling, cut emissions, and boost operational efficiency.