If you dont have a trade club card thats a good price.If you want to get a card,join autobahnstormers club (£20p.a.) and they will send you a card in a few days.You will more than save the £20 the first time you visit a dealer who participates i Trade club. 4x5 litres of 10/40 around £46,all your filters and many other parts are greatly reduced in price.Its saves many of us a lot of money.
V6,s like the oil and filter changed around 4,000 mile intervals,certainly no more than 5000. This prevents most of the reliability issues the cars are somtimes known for.

P.S. No need for fully synth really,although you could leave your oil changes a bit longer if you use it.Personally I think its a bit ott unless its used in a high perfermance engine which is being constantly thrashed. I and others on here use GM 10/40 semi in motorbike engines.My bike often revs to around 13,000 rpm, and has never given any problems running on semi synth.
Up to you though,you pays your money,you make your choices.
