I'm in the process of buying a new-to-me boat with a 2001 Evinrude 225 Ficht on the back. (clean engine report, and good amount of hours, hauls a$$ and a great price too!)
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The current owner runs XD-25 in it, and I've always run XD-100..............even in my 86 XP150 and LOVE it!
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I've got a few gallons of XD-100 leftover; and want to run the XD-100 through it when I take possession. The oil reservoir is about half full of XD-25. My thoughts were to top the tank off with XD-100, and as I use what's in the tank; keep topping off with XD-100 for a gradual changeover.
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Anyone have any reason why I should not do it this way?
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(I thought the above method might be better, vs. draining the oil reservoir and going straight XD-100 all of a sudden)