irmsherguy Im sure has been asked before but i have been using 10/40 since ive had my astra but was wondering which brand and grade of oil ppl use and why cus i have no idea whats best dunno.. Thanks
MikeS genuine vxhall 10/40 or 5/30 i would only buy 5/30 if you know your engine doesnt blow it out or leaks with trade club it is around £18 for 5 litres or around £11 for 10/40 alternativly use opie oils who are an authorised trader on this site