Bmurray
Well-Known Member
Lifetime Member
You only have one plug. Just change it every couple 3 or 4 oil changes if you feel the need to. NGK standard is really all you need.
I thought you had a 520 or 700. My badWell, there are actually 2 plugs but I haven't seen any huge change in improvement with my starting issue so I am not sold on them for all the extra money.