Volvo 2008 V70 Owner's Manual page 186

CAUTION
Avoid spilling gasoline during refueling. In addition to causing damage to the environment, gasolines containing
alcohol can cause damage to painted surfaces, which may not be covered under the New Vehicle Limited Warranty.
199
05 During your trip
Refueling
Manually opening the fuel filler door
If necessary, the fuel filler door can be opened manually.
Open the side hatch in the cargo area (on the same side as the fuel filler door).
Grasp the green cord with a handle.
Pull the cord straight rearward until the fuel filler door clicks open
200
05 During your trip
Refueling
Opening/closing the fuel cap
Fuel vapor expands in hot weather. Open the filler cap slowly.
After refueling, close the fuel filler cap by turning it clockwise until it clicks into place.