It would be hard for me to tell what wonders might await you if you were to try KLG FE70 spark plugs, probably nothing spectacular, all I can tell you is that they quite simply work for me, I have tried most of the others, NGK, Champion, Nippon Denso, Bosch, etc. and the KLGs seem to work best, they start easier, seem more reliable, and last longer, if I feel the starting performance is going off a bit I give them a quick clean and away they go again, I have a few in reserve and calculate that they will probably see me out, unlike the aforementioned other brands would be likely to manage.