Sporting99
Fuel in F1 cars should be composed of compounds normally found in commercial fuels. The FIA checks the quality of fuel used in Formula 1 Cars.

Fuel

Formula 1 cars are powered by petrol. The FIA regulations direct that the fuels should be 'predominantly composed of compounds normally found in commercial fuels'. Use of fuels having power-boosting chemical compounds is prohibited.

Samples of Fuel
The teams are required to provide the FIA with two separate five-litre samples for analysis and approval before every event. FIA teams can select more samples in between events to ensure that there is no discrepancy between the fuel being actually used and the sample provided.

Racing Car Fuel
At the beginning of formula races, the cars used a mix of various additives and chemicals like benzene, alcohol and aviation fuel. The combination of these additives was power boosting, yet not friendly to the engine. At the end of the race the engine had to be cleaned properly. With time considerable changes have been made in the composition of fuel. A broad outline has been made to differentiate between racing car fuel and ordinary fuel. Engine oil is also the part of fuel structure and is also checked at regular intervals.

Mixtures of Fuel
A team usually consumes up to 200,000 liters of fuel during testing and racing. The FIA allows to use various mixtures of fuel according to the nature of track. However the combination used must be in accordance with the parameters of the FIA. The fuel companies keep on trying to optimize the use of fuel but the regulatory body ensures that they don't violate the regulations.

Fuel Tanks
The fuel tanks in these cars are made of single rubber bladder. The materials used must be approved by the FIA. Only bladders manufactured by certain approved companies are allowed. The fuel lines should self-seal in the event of an accident, thus lessening the risk for the driver. No fuel line should pass through the cockpit. The bladder tank must be encased in a crash-resistant structure which is the part of the safety cell of the car.

Refueling
For refueling, identical rigs supplied by FIA-approved manufacturer are used. The refueling rate while race is limited to 12.1 litres per second.