Note:
Refuel your Opel Astra with unleaded gasoline with an octane rating of at least 95.
You will need: a can of gasoline, a special funnel for the fuel tank neck, which has a narrowing that excludes refueling with leaded gasoline.
Note:
The tips of filling nozzles for leaded gasoline dispensers (old-style dispensers with pointer gauges) had an increased diameter. Therefore, to prevent accidental refueling with such gasoline, the diameter of the filler neck is made smaller than that of the tips of the pistols of these dispensers, therefore, the tip of the funnel must also be of small diameter.
Warning:
Do not smoke or use open flames while refueling.
Helpful Hints:
If at the gas station where you expected to refuel the car, you have just drained fuel from a fuel truck, it is better to look for another column or return in a few hours. The fact is that not all dispensers are equipped with good cleaning filters and it takes time for all the dirt in gasoline to settle to the bottom of the gas station tank. Refuel your car at trusted gas stations. The power and durability of the engine directly depend on the quality of gasoline. Wipe off gasoline spilled on body parts immediately with a clean cloth. When refueling, do not use plastic cans or containers as there is a risk of sparks due to static electricity.
The fuel cap is located on the right rear fender under a flap.
1. Unlock the central lock by pressing the corresponding button on the remote control of the working key.
2. Open the cover.
3. Until locked in the open position.
4. Turn the fuel tank cap counterclockwise.
Warning:
Since fuel vapors can create increased pressure inside the tank, unscrew the filler cap slowly. This will equalize the pressure inside the tank with atmospheric. If you see steam coming out from under the cork or hear a hissing sound, then stop unscrewing the cork and wait until these sounds stop. Otherwise, fuel may splash out of the tank.
5. Remove the plug.
6. Attach to the cover bracket.
7. Insert the fuel dispenser nozzle into the fuel filler neck and refuel the vehicle. If you refuel your Astra from a canister, before refueling, insert a funnel into the fuel tank neck and fill in gasoline from the canister.
8. After filling, turn the cap clockwise until it clicks into place. The cork is equipped with a tightening torque limiter, so after a click it will scroll.
9. Close the cover of the manhole of the filling pipe and remove the drips of gasoline with a rag.
Source: http://www.automnl.com/model/opel_astra_h2/47/







