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Recommended thermostat temp for 305

diveryates

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Question: What is the correct

Question: What is the correct thermostat temp. for a '83 Mercruiser 230 (GM 305)using 50/50 glycol/h2o & configured with a heat exchanger?
 
With an enclosed heat exchange

With an enclosed heat exchange system you can use a 195 degree automotive thermostat. Raw water systems run lower 160 degrees for fresh water lakes and rivers and 145 degrees for operating in salt water.
 
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