Which driving guideline is essential to apply in order to reduce fuel consumption as much as possible?

Question

DentroTest · Accepted Answer

One of the main keys to efficient, economical driving is to keep speed as constant as possible. Continuous changes of pace, sudden acceleration and hard braking drastically raise fuel consumption. On the contrary, driving in low gears forces the engine to turn at a higher rpm, increasing fuel use unnecessarily (you must drive in the highest gear possible). Likewise, doing without engine braking is a mistake, because when you lift your foot off the accelerator with a gear engaged the fuel injection is cut off, which means zero fuel consumption while the vehicle decelerates.

Which driving guideline is essential to apply in order to reduce fuel consumption as much as possible?

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