I hear there are 2 types of thermostats for my car. Which one is better for my car?

Asked by Nov 23, 2013 at 06:15 PM about the 1997 Ford Thunderbird LX

Question type: Maintenance & Repair

97 Ford Thunderbird. 3.8 liter. V-6

4 Answers


I always advise to go back with the stock oem thermostat unless the vehicle is being heavily modded.


195 degrees is good for winter.


195 is probably stock. you would get the best fuel economy using that. some people use a 180 or 160 to keep the engine cooler for more power, but that won't make a difference on a v6.


Since your Thunderbird is a '97 model it's computer controlled and it's an OBD II system. You must use a 195°F thermostat or your check engine light will keep coming on. This is because the engine must reach operating temperature (195°F) within a specific time or the computer "thinks" there's a problem. HTH. -Jim

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