Safe and Economical Driving
In a petrol engine, at what engine speed is it best to change to a higher gear to save fuel?
Reviewed on 9 Aug 2026
- A Between 1,000 and 1,500 rpm
- ✓ Between 2,000 and 2,500 rpm
- C Between 3,500 and 4,000 rpm
- D Above 5,000 rpm
Why this is the correct answer
In petrol engines it is best to change gear between 2,000 and 2,500 rpm; in diesel, between 1,500 and 2,000 rpm. Shifting up early reduces consumption.
More questions on Safe and Economical Driving
- Which of these practices helps save fuel when changing gear?
- When you lift your foot off the accelerator and let the vehicle coast in gear above 1,000 rpm, fuel consumption:
- During a stop, when is it advisable to switch off the engine to save fuel?
- For efficient and safe driving, the most advisable approach to speed is:
- Above roughly what speed does the vehicle start to consume and pollute significantly more?
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