Home › Forum › Ask A Member › OMC V4 CD iginition spark plugs › Re: OMC V4 CD iginition spark plugs
May 5, 2016 at 12:45 am
#36009
In my experience, the surface gaps don’t idle as well. I prefer the L77JC4 plugs. If electrical interference is an issue, you can use the QL77JC4.