Following Prime Minister Narendra Modi’s appeal for austerity in fuel use, rumours of a possible petrol shortage spread rapidly across Goa. Yet the incident has once again exposed a familiar public reaction. Whenever people fear a shortage or anticipate a fuel price hike, they rush to petrol pumps and fill their vehicle tanks to the brim. In high temperatures, fuel expands and releases vapours inside the tank. Modern vehicle fuel tanks are designed with a small empty space to allow this expansion safely. When motorists overfill the tank beyond the automatic cut-off point, they eliminate that safety buffer. During extreme heat, the pressure inside an overfilled tank can increase significantly. Excess fuel may leak through the fuel cap, creating the risk of fire if it comes into contact with a spark, hot engine surface, or electrical component. In severe cases, the pressure buildup can potentially trigger an explosion or vehicle fire. In the scorching summer heat, a few extra liters squeezed into a fuel tank may carry consequences far more serious than most motorists realize. Verified information from government agencies and fuel suppliers should guide public behaviour, not speculation.
