How can fuel efficiency be improved?

1. A.By driving the vehicle in a lower gear for as long as possible.
2. B.By using gentle acceleration and making gear changes appropriate to speed.
3. C.By using an anti-waxing agent only in freezing conditions.
4. D.By accelerating hard up through the gears to reach the desired speed as quickly as possible.

This is an official-style question from the Safe and Responsible Driving topic of the Ireland driver theory test (Cat. B). Practise all 807 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.