Stant or Motor craft thermostat?

Either one would be better then a Murray. Just be sure to test it in a pot of boiling water before you install it.

I've always just bought one from Napa. I have no idea what brand they are but I have never had any problems

The last Stant I picked up was made in USA also so thats a plus.

Robertshaw. Will never have any other thermostat, ever.

Have had many stants. Many of them have failed. Stuck open most of the time. Some went with old cars that I sold. One stuck shut & overheated (2.3 turbo) took out the engine before I caught it. On my '93 LX (2.3L) I bought a Stant. Stuck it in. Worked fine...all is good. Year later I'm watching my fuel mileage drop from mid 30's to mid 20's and at the same time I am seeing the temp gauge stay WAY down there..not much off of 130. Air temp was in the 40's typically at the time. Pulled the stat housing back, thermostat stuck OPEN. Ordered a Robertshaw thermostat from one of the parts stores and stuck that one in. They didn't have any stants or murrays and Ford didn't carry one for a Ranger or Mustang with a 2.3...so I figured why not try a Robertshaw brand. Made in USA completely (stat and package both). Stuck it in, tested after bleeding the cooling system. Temp gauge now runs up about halfway-which is tested on the ECT at 195° engine temp. All is good. Drove back & forth to GF's house a few times and mileage is back up to mid 30's...upper 30's if I drove like an egg was under my right foot (rare..with a 2.3 it's got to be on the floor most of the time). That t-stat has been in the car for about 3 years and about 100,000 miles before the engine got loose (was a used engine to begin with). Matter of fact the stat is still in the engine. Engine is not in a car though.

Same deal on my 5.0. Robertshaw all the way. Never an issue with it. Heats up quickly, keeps heat in it (doesn't fluctuate) and gets good mileage. So far.

stant super stat here with a 1/16th hole drilled next to the center to release air bubbles.

striker911 said:

Heres what I Know about that stat.

Robertshaw got out of the automotive thermostat business about ten years ago, and sold it to an internal management group; apparently that group recently moved the manufacturing from Mexico to China. The Mr. Gasket thermostats are re-packaged Robertshaw units. They are junk. Summit sells them for $20. Thanks for the info though.

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Agreed I had a Mr. Gasket thermostat for about 6 months before it stuck shut and I had to change it out. That's when I went with the super stat from Stant its even lifetime warranty at Advance Auto.