Fuel, fuel usage and refuelling

What the sporting regulations say:

  • Cars may use no more than 105kg of fuel in each race (with the power unit regulations stipulating that fuel flow must not exceed 100kg/hour). Drivers exceeding the fuel limit during a race will be immediately excluded from the race results.

  • Teams are not permitted to add or remove fuel from a car during a race. In other occasions during the weekend they may refuel cars but only in their respective garages, and only at a rate of 0.8 litres per second.

Read the full sporting regulations

What the technical regulations say:

  • Formula 1 cars run on petrol, the specification of which is not significantly removed from that used in regular road cars.
  • All fuels must comply with strict requirements, and prior to each event the teams must submit two separate five-litre samples to the FIA for analysis and approval. Fuel samples will also be taken during an event to ensure the fuel being used is legal.

  • Fuel tanks are also strictly governed - they must comprise a single rubber bladder, which must be made of materials approved by the FIA and must be manufactured by certain approved companies.

  • The tank must be situated directly behind the driver and directly ahead of the engine. All fuel lines must be self-sealing in the event of an accident and no lines must pass through the cockpit.

  • The fuel tank must be encased within a crushable structure that forms part of the car's safety cell. This structure must be able to withstand very high impact loads as specified in the regulations.

Read the full technical regulations