Turning the engine off instead of idling does save fuel. Automatic start-stop is used to decrease the overall engine idling time. An electric oil pump is adopted in vehicles equipped with Idling Stop. In reality, an engine restart uses fuel approximately equal to 10 seconds of idling. These use a technology to reduce harmful emissions caused by the necessary idling of ambulances. Additionally, the production team aims to reduce vehicle idling, which decreases carbon dioxide emissions. This came after Staten Island residents had complained about pollution from idling vehicles. Auxiliary power units offer another alternative to both idling and shore power for trucks. These weaker springs are compressed solely by the radial vibrations of an idling engine. The locomotive's throttle included eleven settings, ranging from one (idling) to eleven (full speed). One night, Logan sees a car idling in the driveway. Early models were prone to oil leaks and unstable idling. In 2011, Johnson introduced spot fines for coaches idling on Park Lane. Idling aircraft criss-crossed overhead in tribute. The hostages were gathered together and most were quickly put on the idling C-130 aircraft.