MotoRad 2067-180 Engine Coolant Thermostat: Optimal Temperature Regulation for Efficient Engine Performance Review

I have this in a 99 foot Monte Carlo with a 3.1 liter engine. It's definitely colder than the factory model in the summer and easily retains heat in the winter. I live in Chicago so you can use this as a reference for your weather type. I've had it for a few months now and no problems so far.

This replacement thermostat has worked well so far. I am giving a 3 star rating as I had to replace my previous motorcycle thermostat after a year (stuck open). Luckily, the thermocouples in my truck are easy to replace. If this thermostat fails like the previous one I will update this review.

Replaced the radiator on a 1998 Buick Century but the temp gauge was showing slightly higher than before and tended to overheat. I took a chance that was the problem (not the water pump) and yes it worked. Runs cooler and more stable now. The only downside was that on the Century it's buried in the back of the exhaust pipe, otherwise I would have changed it myself. It took a mechanic two hours to replace it. Thanks GM for bad design.