1998 Johnson 225?

[Jetty Rocker]

Thanks for the info Ferm. I'm not sure if I have been using nautical miles or statute, that was a good point. I had been running a worn out 19p and my cruising rpms were 3500-4000. The reason that I went to the 21p was to lower my cruising rpms thinking that would increse my mpg's. I will start checking my mileage again and compare.