The best temperature rating for the thermostat on a 1994 Toyota pickup is 190 degrees. This gives a good balance of performance and efficiency.
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180 degrees F.
87 is best. Anything more is a waste of money.
Your engine will get the best mileage at full operating temperature. If the thermostat is removed or too low a temperature unit the engine will use more fuel.
Replace it with the exact same temperature thermostat as the one you removed. Do not run the engine without a thermostat. The thermostat is required to keep the engine running at the optimum temperature that will give the best performance and mileage. If it is overheating running it without a thermostat is not the solution.
Depending on your temperature setting, usually the best is about 70 degrees, it's best to set the thermostat, and leave it at a constant setting. Resetting your thermostat to higher temperatures requires the furnace work harder, and will usually increase your utility bill.
Yes, you most certainly do. If you have no thermostat installed then the engine will take a very long time to reach full operating temperature and may never get to the proper temperature. The thermostat allows the engine to warm up quickly which helps prevent engine wear, reduce engine deposits, and emissions. The thermostat keeps the engine at the proper operating temperature for the best performance and best mileage. Running a modern computer controlled engine without a thermostat is a very bad idea.
When the heat in an oven can not be controlled it is the fault of the oven's thermostat. It is the thermostat that opens and closes to maintain a set point temperature. Depending on how the thermostat failed it will give the results of the oven always being on, oven with no heat whatsoever or when the calibration is not set correct, when wrong temperature is maintained.
Yes the engine will run but not like it should. The thermostat is required on modern engines to get the engine to the proper operating temperature and keep it there. This will give you the very best mileage and performance. The optimum running temperature for most cars is 195 degrees Fahrenheit. without a thermostat the engine will take a long time to reach that temperature all the while wasting fuel. Without a thermostat the engine may run at a cooler temperature which is not a good thing contrary to what you might think. Anyone that tells you that your car doesn't need a thermostat has no clue as to what's going on with today's cars! Microprocessors and sensors depend on a certain set of parameters from the manufacturer. Included in this mix is the engine temperature. Remove the thermostat, and you throw the computer system into a tizzy! Install the correct thermostat for your vehicle and leave it in.
Best way to tell your normal operating temperature is to visit an auto parts store and ask them what the OEM thermostat temperature is (or you can look it up yourself on Autozone.com). Most cars these days will have around a 190 degree thermostat. Your car will run slightly hotter than that temperature as it is needed to maintain the thermostat in an open position. With that thermostat you can expect to see the temperature of the water stay around 205-210. If the water temperature ever starts to get above 240 you should shut the engine down to avoid damage and have the cooling system checked. Temperatures above 260 WILL cause significant engine damage.
It seems as though the Chevrolet Equinox has the best safety ratings when it comes to mid sized SUVs. It scored good ratings on all Front, Side, Rear, and Roller tests.