2007 Mercedes G-Class Owner's Manual - Page 266

Operation At the gas station Only fill your tank until the filler nozzle unit cuts out - do not top off or overfill. Warning! i Make sure to close the fuel filler flap before locking your vehicle as the flap locking pin prevents closing after you have locked the vehicle. Check regularly and before a long trip For information on quantities and requirements of operating agents, see "Fuels, coolants, lubricants, etc." ( page 422). Open the hood ( page 267). G Close fuel filler flap 1. You should hear the latch close shut. Overfilling of the fuel tank may create pressure in the system which could cause a gas discharge. This could cause the gas to spray back out when removing the fuel pump nozzle, which could cause personal injury. i Leaving the engine running and the fuel cap open can cause the ? malfunction indicator lamp (USA only) or the ± malfunction indicator lamp (Canada only) comes on. For more information, see "Practical hints" ( page 328). ! When refueling the vehicle, make certain that no gasoline comes into contact with the rear side marker to prevent damaging the lens. Replace fuel filler cap 2 by turning it clockwise until it audibly engages. i Only use premium unleaded gasoline with a minimum Posted Octane Rating of 91 (average of 96 RON/86 MON). Information on gasoline quality can normally be found on the fuel pump. Please contact gas station personnel in case labels on the pump cannot be found. For more information on gasoline, see "Premium unleaded gasoline" ( page 426), refer to the Factory Approved Service Products pamphlet (USA only), or contact an authorized Mercedes-Benz Light Truck Center. G 500 1 Coolant 2 Brake fluid 265