I used the Canton one for a while, but with our hot Summers here the
oil and water are at operating temperature within 5 minutes anyway. And since I never drove it in the Winter, I took the valve out, and I was running a remote filter and my
oil cooler had long lines to it also. The one that I had allowed just a little
oil through before it got hot enough to open as that would start to warm the oil in the cooler. Then once it reached the set temperature it opened up wide and there was un-restricted flow.
Ron