Myth – Condensed water gets accumulated in Gas (Petrol) tank of the vehicle
Myth – Condensed water gets accumulated in Gas (Petrol) tank of the vehicle Facts – True and False. It depends on how much water. Water in fuel tank either remain at the bottom of the fuel tank or remain mixed with petrol in same liquid phase. It is important to know whether the petrol contain any alcohol or it is alcohol free. Water is almost non-miscible with pure petrol hydrocarbons. Condensed water will be accumulated slowly in Vehicle Gas tank at bottom if petrol does not contain any alcohol (Ethanol, Methanol etc). Many countries now commonly use Petrol mixed with say 5 to 20 percent of Ethanol/Methanol. Any water condensation happening in fuel tank will immediately be absorbed in such fuel because of alcohol and thus remain in fuel phase and will go out to engine and ultimately out of vehicle exhaust. Condensation takes place as air gets sucked in fuel tank as the fuel is pumped out when engine is on and also due to day night temperature variation when some air