Thread: 180 vs 195 t'stat on 3.4

I believe mine has the 180 right now as in normal driving, the temp gauge doesn't go above 1/4 way, unless it is a lot of stop and go.

that is fine in this heat but my concern is when it gets cold this winter, am I going to need to change to a 195 so that the heater will actually work?

I know the 3.8 series II has the same thing going, I used to have to swap stats between cold and hot seasons...

Now if it ran a 195 in hot weather, how would that effect performance and all?

What is the best route here? I am tepted to just swap back and forth or is that a bad idea?

Stick with the 180. Didn't notice any difference during the winter. Heater would still make you sweat.

I shall do that.
I know on my 3800 series II in the winter the heat just didn't work for crap, I won't be able to test this until it gets real cold out but for the time being I will assume the heat will be good.

in all honesty everyones obsession with running a colder thermostat is silly. running the motor 10-15* colder will not help with knock prevention nor will it do anything for performance.

run the stock thermostat and get better gas mileage.

When I got it, it had the 180. Well I am real sure it does, haven't actually looked at it but based on the temp gauge, it doesn't get very high

One day I will dig into it and put in the 195.