I am just getting my Cav serviced (1.8 - K reg) and I don't know what grade of oil to put in it now? She is getting a bit old (132,000 miles) and since I have had (4 years) it I have used a 10w/40 semi-synthetic (?) oil.
Should I go up to 15w/40 multigrade to quieten her down a bit? I have been told you should'nt rev an engine to hard with this grade in (?!?) and I do like to put my foot down now and again!
I always use magnatec it was recommended to me by a friend who is a mechanic .
IT always seems to quieten a cold engine.
The only one better is mobil 1 but i wouldnt recomend it on a car that high mileage.
But those engines are excellent high milers.
I drove a vectra 2.0 16v the other week with 145,000 on the clock driove like a dream!!!!