Offshoreonly.com - Why do 500EFI motors use a 140 degree thermostat?

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dewayne6243

05-04-2013 07:16 PM

Why do 500EFI motors use a 140 degree thermostat?

Every motor Mercruiser makes takes a 160 degree thermostat so why do they show the 500efi using a 140? What is so different about this motor?

US1 Fountain

05-04-2013 08:32 PM

Always thought the carbed motors use 140*, and EFI's used 160's. Odd

dewayne6243

05-04-2013 08:48 PM

All my motors have 140's in them. Mercruiser book also calls for 140's. Wonder if 160's will burn the fuel better.

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