Could only get hold of 15w 40 mineral oil so im gona run that for 500 mile put a filter on with it, an after that change filter an put a good 10w 40 fully ?
I currently have 5w 30 semi just whilst i started the car, but have ran it for a good hour on idle, and done about a mile so far just wondering if i need to chamge it before i do the 500 mile bed in?