Re: Looking for the best spark plug
There are lots of brand available for best spark plug, you can visit nearest show room they can help you out.
Remember that ( apart from few modern re-badged engines) Champion plugs are the only ones recommended for Johnsons and Evinrudes .
Be aware that resistor plugs are not suitable for OMC CD ignition systems. A fact often not appreciated in showrooms or reflected in equivalent or applications lists for other brands of plug. If suppressed plugs are required they must be inductively suppressed ones. ... The Champion "Q" series plugs are specifically aimed at this use.
The inductively suppressed plugs are also recommended for engines with VRO/OMS.
A question here will always lead you to the latest recommendations.