Take off slowly and accelerate gradually.
When accelerating, press the pedal for approximately 80%. This should be enough for heavy-duty trucks. For medium- and light-duty trucks, about 50% depression is sufficient. The perfect timing to accelerate is between 1,500 and 1,800 rpm. That is right in the middle of the green zone on your engine’s rev counter. This range consumes the least fuel for the equivalent amount of output. Try to shift early, before the rev speed passes the green zone.
Drive at a constant speed as much as possible.
When driving at a constant speed, make sure your rev speed is between 1,000 and 2,000 rpm. This is the most economical way to drive. When driving, try to accelerate and decelerate minimally. You can save up to 10% fuel. When possible, try and keep your speed fluctuations within 10km/h, when the traffic conditions allow it off course.
Drive at a moderate speed
A higher speed means your vehicle needs to deliver more power. This results in a higher fuel consumption. The faster you drive, the greater the air drag becomes. So, driving at a moderate speed, between 80 and 90 km/h, is your fast-track to a better fuel economy. Remember, driving 10km/h slower results in a fuel consumption reduction of 10%.
Turn of your engine when stationary.
A heavy-duty vehicle with an engine displacement of 12.8 liters will burn around 1.3 liters in an hour simply by idling. A light-duty vehicle with an engine displacement of 4 liters will consume about 0.8 liters in an hour of idling. To show just how much this effects your fuel consumption, we give you an example; If your truck idles for about 3h a day and you use your truck 25 days a month, that will result in a consumption of 720 liters a year for a light-duty truck. Just by idling. For a heavy-duty truck, this will result in a consumption of 1,170 liters. Want to cut down on fuel costs? Reduce idling as much as possible..
When you want to stop your vehicle, determine where you want to stop and choose the right timing to begin braking. Try to use engine braking when decelerating. Try to minimize the use of your foot brake where and when traffic conditions allow it, in terms of safety. This contributes to saving fuel every time you use this technique.