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Vehicles in the US use approximately 1.4 billion liters of fuel a day. This number can be reduced by driving more fuel efficiently. Several sources provide fuel saving eco-driving advice, but the advices are often quite abstract. This paper uses a large set of high-frequent GPS and Controller Area Network Bus (CANBus) data from four similar vehicles to evaluate the eco-driving advice. The CANBus data provides information such as the fuel consumption per second and rounds per minute of the engine.
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Jakobsen et al. (2013) studied this question.