Do plugs on marine engines have a significantly shorter life than on automobiles?Wow at least 6 years without changing the plugs. I bet you won't do that again.
That was my wife's comment too! Obviously great minds think alike!$425 is cheap for a new boat.
I would think they would foul more, as cars idle very little then get driven at typically higher rpms and burn off accumulating fuel deposits. I would think boats idle more and run at lower rpms vs the short periods of WOT or higher rpms that cars see.Do plugs on marine engines have a significantly shorter life than on automobiles?