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Thermostats

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Old 04-25-2016, 11:32 PM
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Question Thermostats

I'm bringing a '98 5.9L back to life. I live in Arkansas, it's humid and hot in the summer. Any benefits to using the 180 degree high flow thermostat? Or should I stick to the OE 195 degree? A lot of stop and go, in town driving. Thanks.....
Old 04-26-2016, 04:48 AM
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My opinion? Stick with the 195* stat. The computer controls are set up for a normal operating temp in the 195*-210* range for maximum fuel efficiency. Running lower than that makes the system think it's not warmed up yet. Some of the newer models will set a code for low temp.
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