Unless it is going in a high performance engine (which it's not, it's a French bit of crap! no disrespect stainesy) then who the fvck cares??? I have always serviced my cars regularly, but I have never cared what oil I put in them, used to cost £8.50 for 5 litres of whatever crap was on the shelf, I used to put diesel oil in petrol engines because I had it, never done any of them any harm. oil is oil!
Only once have I ever known a problem because of using the wrong oil, that was a ford escort and ford had specified the wrong oil, it was too thick so the engine wouldn't rev over 4000 rpm changed it to thinner stuff and it was fine.