Thread: 160 or 140 Thermostat?
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jps
 
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Default 160 or 140 Thermostat?
In article ,
says...
It seems most new boats have a 160 thermostat these days. I have a '93
Mercruiser 4.3LX. Can I use the 160 thermostat? I boat exclusively in
fresh water. I want to get the cleaner combustion that the higher temps
give.

The manufacturers only distinguish between fresh and raw water cooled
engines. 140 is recommended in raw water, 160 for FWC.

jps
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