what spark plugs are best in my mk 4 1.6 8v? it had bosch super 4's untill a couple of services ago then i put vauxhalls own long life ones in, they look the same as the bosch super 4's with the 4 bits on them. vx told me that there long life ones last 80 thousand miles. doubt i would leave them in that long though!
just wondering what to get next, bosch super 4 or the vauxhall long life ones.