Revision question · Environmental issues

What will cause a noticeable increase in your vehicle's fuel consumption?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

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Using electric windows

Using a manual sunroof

Using air conditioning

Using the endurance brake

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Using air conditioningThis was the right answer

Engine-driven air conditioning adds load and can increase fuel consumption. The amount varies with the system and conditions, not a universal 15%. Avoid unnecessary use while maintaining safe visibility and appropriate comfort for the driver and passengers.

Reviewed reading for this question

Cooling uses energy, but comfort and visibility remain essentialReviewed guidance summary · The supported answer is an increase in consumption; the explanation’s fixed numerical claim is separately removed.

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