I've had the head gasket done in Oct/Nov so Vauxhall obviously changed the oil etc at the same time. Just looked and think i could do with a top up but dont want to buy more oil if i have to.
I used to put Mobil One 0W40 Fully Synth in it, I have bought Castrol Magnetec 10W40 to do next time and i put Halfrauds Semi 10W40 in my Cavalier 1.8.
Can i use any of these to top up but i dont want to do any damage to my engine if i cant mix them. Just trying to save a bit of cash after £580 on the head and £330 on a manifold.
Ta very much.