i would think either would be ok to be honest...£65 seems very cheap our cars take 8.5 quarts which = 9.6 litres, halfords have on their website 4 litres of castrol edge @ £32.79 so two of these + another 1.5 litres + filter = more than £65....interesting to see if they honour that price when you turn up...(if my calculations are correct).....