Can someone please tell me what grade oil is best for my 1994 Cavalier SRI (X20XEV Ecotec)?
I've had a price for an oil change from my local garage (actually a Ford Rapid Fit, but the manager there is a top bloke, does little things for me for free cos I'm a regular customer, AND HE DOES NOT RIP ME OFF!!!).
The price they are quoting me is £24.99 which I thought was quite good, as Magnatec oil is around the £20 mark anyway right?
What does concern me is the oil they will use. He says it's what they recommend for all modern 16 valve engines. It's their semi-synthetic oil. The grade is 5w 30. Is this too thin for my car? I was under the impression that I should really use 10w 40?
Should I give it a try and see how it goes, or is it too thin?
Cheers for any help.