Explanation: • Carrying as much weight as possible to cut the number of journeys: No, although maximising payload is always the goal, the more weight carried the more fuel the vehicle will use to move it. Trying to get as much weight on as possible may also lead to overloading the vehicle, particularly where there is a high cubic capacity for goods as there is in this double-deck semi-trailer.
• Advising the drivers to coast downhill whenever they can: No, this is potentially very dangerous and could lead to brake fade (where the brakes overheat and lose all stopping power) as there is no assistance to slow the vehicle via engine braking and because the engine will be running at very low revs, the compressor may not be building sufficient air pressure in its tanks to supply the braking system.
• Using red diesel because it is significantly cheaper than white: No, the use of red diesel in a road engine is illegal as it means that the correct level of duty has not been paid. Using red diesel can lead to the confiscation of the vehicle by HMRC and a very heavy fine or other monetary penalty.
• Keeping the rev counter in the green zone: Yes, this is the best answer here. Keeping the rev counter in the green zone means that the engine is working most efficiently.
Category: CPC Case Studies: EcoSafe Driving
