Originally Posted by 4x4Wire
One observation wrt thermostats...

Failure rate (not opening at listed temperature) is high. I don't find Stant to be any worse than OEM. What I have noted is a shift to Made in China which I find a higher failure rate.

Key take away, don't trust the listed temp. Always test it....


I totally agree. OEM or Stant not reliable, even "OEM" might be made by Stant.
I used to trust Stant. Most people don't know as they only have faux gauges. I'd also say opening before spec'd temperature is as common.

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles