Engine Temp

[tappskier]

I have a 1994 prostar 190 with the fuel injected engine,,, I'm assuming it has a 160 thermostat in it. It doesnt seem to get very warm,,,, is it okay to go to a 180 temp thermostat?

Thanks

[76S&S]

Is it getting to 160? If not the thermostat may be stuck open.

[JimN]

Just use the 160 degree. If it never rises, make sure the oil cooler isn't clogged. Hot air doesn't transfer heat as well as hot water.

[rob935]

id be wary of having too low a running temp as this may affect the performance and smooth running of the engine .

[JimN]

It may run smoothly with a lower thermostat but it will never be very efficient since it won't reach normal operating temperature. In a car ot truck, the thermostat can be as high as 190-200, depending on where it's used, but that's also using a closed cooling system with a radiator. 160 degree is the original part.