Well I had to do it today. I had to replace my 180 thermostat with a 195. My car would'nt warm up even with cardboard in front of the radiator. Must be something about these 10-30 degree weather. Oh well as soon as May comes around i'll be installing my 180 again. But i can notice a difference with my 180 stat. Car warms up faster and funny enough it even seems to run better. Maybe my car was running too cold before. And now I have real heat.

Sounds more like you had a stat that was stuck open, Even at 10 degrees (jwas in Denver for last three weeks) on max heat should feel some warmth at 100F coolant, reasonable at 140 and lots by 180F

From 0-180 it makes no difference if you have a good 180 or 195, car will heat up at same speed.

I like Stant Superstats.

I believe the old one was stuck open but it sure feels nice and toasty in my car with a 195. But I will definately be changing back to a 180 for the summer. It was 50 degrees here today and my temp gauge didn't come up past half.

Agreed......the heat comes just as fast with a 180, unless it'* drilled. It does take a wee bit more time to get heat with bypass holes, but not much longer if you don't over-do it.

Half is 220F, mine almost never gets to the first quarter (190F). Lots and lots of heat.