Fuel consumption rate

A fuel consumption rate is a value that represents how much fuel an engine consumes to perform certain work.
Fuel consumption rate is generally expressed in grams per horsepower per hour in units of g/PS·h. In SI units, this becomes g/kW·h.
Accordingly, the smaller this value is for an engine the more economical the engine is, and the better it can be said to perform.
Generally, this value is smallest near maximum torque.

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