I want to refill my gear oil
The gearbox oil is separate from the engine oil on a 2002 1.4 Astra, and much thicker.
10/40w
where is the gearbox oil fill on peugeot expert hdi 2004
dexron VI
The gearbox oil plug of an Opel Corsa 1.6i Sport is located in the underside of the transmission. It is on the left side of the, near the bumper area.
Oil rings
Your Holden/Opel Astra requires an ACEA A5 oil, check the bottle for that spec in a 5w30 weight oil. Synthetic oil can either be 0w30 or 5w-30.
The engine number on an Opel Astra may be listed inside of the car manual if the number is not listed on the engine itself. Other vital information such as what kind of oil should be used is listed in the car manual as well.
under the passenger side drive shaft with a 12mm hex key for both drain and refill plugs
You will need to use the manual to learn how to do this. It can give you all of the step that are needed.
To change the gearbox oil, use a jack to lift the car and get underneath it. There is a duct under the gearbox that can be opened using a spanner. This will let the oil flow out. Close the cap again and refill oil from the oil cap which is located in the hood of the car.