Has anyone used the longer(deeper) NGK ZFR6F-11, im about to fit them and wondering if the claimed “performance”
advantages are real or as i expect, not.
Not tried them, but if they’re the same price then it won’t hurt…
Can’t see it making any noticeable difference, but the theory sounds ok.
Got some last year, for the sake of a few extra pounds, seemed worth it.
I noticed nothing other than a lighter wallet.
Having fitted them, she seems to idle better (although the last lot were old from inspection) but most noticably pickup seems better
with the main difference at low revs during pull away. With regard to cost get a trade card with halfords, plugs were less than £9.00 for the
long NGK.
Fitted these too… seemed more responsive but nothing major. Old plugs were as new when I took them out [:^)]
Hi kwacker
How do you get a “Trade Card” from Halfords please?
Regards Alan
you need to prove that you work for some sort of motor industry.