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hey anne, sell your boat and you will never have to worry. Just kidding, I would just use crappy ones and replace them more often as well.
Ditto on the powerboat.I think my V6 qualifies- 18' Crownline Bowrider with a 220hp Multiport fuel injected V6. Plenty of power for me. But I have to store it outdoors except for winter, where it stays at indoor storage.