Central Energy Fund predicts fuel price increases of up to R6 per litre in May

Motorists facing higher costs are warned that common fuel-saving techniques may be ineffective or counterproductive.

The Central Energy Fund predicted that petrol prices would rise by approximately R2 per litre and diesel by more than R6 per litre in May, following significant fuel price increases at the beginning of April.¹²

With motorists seeking ways to reduce consumption in response to the price hikes, several widely believed fuel-saving techniques have been identified as myths that may not deliver the promised savings or could prove counterproductive.¹²

Coasting downhill in neutral gear does not save fuel because modern engines automatically cut fuel supply when the vehicle decelerates while remaining in gear, and coasting reduces vehicle control and is unsafe, according to the sources.¹² Similarly, avoiding air conditioning entirely can cause seals to dry out, leading to a less efficient system over time, though turning it off occasionally is acceptable.¹²

Idling to warm up an engine before driving wastes fuel, as contemporary engines warm up most efficiently when driven gently soon after starting.¹² Overinflating tyres beyond manufacturer recommendations reduces grip and increases wear rather than improving fuel economy.¹²

Filling the fuel tank only halfway to reduce vehicle weight produces negligible savings but results in more frequent refuelling stops that cost time and may lead to rushed, unsafe behaviour.¹² Using premium fuel, such as 95 octane petrol instead of 93 or premium diesel, does not improve performance or consumption unless specifically required by the vehicle manufacturer.²

Effective fuel economy depends on foresight, smooth driving inputs and proper vehicle maintenance rather than shortcuts, the sources stated.¹²