Im no Mechanic but i read it somewhere that its ment to be 5w 30..
From shop
A synthetic oil is usually good for a Vauxhall combo. You can purchase these oils at local auto stores such as Pep Boys.
in the engine bay
vauhall gear oil gl4 NOT gl5
front of engine it is not a spin on filter 1.7 cdti is fitted with an Eco filter you are looking for a black cap with approx 27mm hexagon on it when refitting torque to the figure shown on the cap over tightening will split the housing Good luck
engine oil 5W-30
where is the oil filter on avectra1.9 cdti
ep 80w gearoil put 2.6 litres in dont fill it to the filler hole,
4.5litres
bottom front of engine
The oil filter is inside the domed cover with spanner hexagon ,located between rocker cover and bulkhead Lee
About 4.5 liters.