Carl Denk wrote: > Does this unit have a sealed cooling system, > or circulate sea water? I believe it circulates the lake water, based on what I was told and also because it's relatively common for the "oil hot" light to come on at low speeds. Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist