ok guys, i have had the BKR6e-11 on my d16a8, and ive seen people use the ngk bkr6e-n-11 instead..... and a workshop told me that i should be using bkr6e-n-11 according to the ngk manuals
what is the real difference between the
bkr6e-11
and the
bkr6e-n-11
surely that cannot be too much.....
and ive been running the bkr6e-11 for quite a while, would it do significant damage??
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