Is it possible to reduce a generator's rate of gas consumption?

According to Portable Generator Master, it is possible to reduce a generator's rate of fuel consumption by fixing the engine if it is faulty, as a faulty engine increases fuel use. Reducing the load of what the generator is powering can also reduce its fuel consumption.

While the above scenarios can reduce the rate of a generator's fuel consumption, Portable Generator Master recommends purchasing a low fuel consumption generator to save more fuel over the long term. Benefits to these generators also include energy efficiency, reduced noise and the ability to run for a longer time. However, such generators run at a low speed and typically cost more than regular generators.