3000GT AWD V6-2972cc 3.0L DOHC Turbo (1991)
Fuel Filler Cap: Description and Operation
Fuel Filler Cap Operation
The fuel filler cap is equipped with a relief valve to prevent the escape of fuel vapors to the atmosphere and to prevent the collapse of the fuel tank
under negative pressure. For a more detailed description of the function of the fuel filler cap, refer to EMISSION CONTROLS.