Why 180-Degree Thermostats Trigger Check Engine Lights (And Why They’re Bad)
Installing a 180-degree thermostat causes P0128 check engine codes in cold weather and damages your engine. Learn why it doesn’t work for street driving.
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What’s a Normal Engine Coolant Temperature? The Real Range Explained
185–225°F falls close to normal for many cars, but the sweet spot is typically 195–220°F. Here’s what coolant temperature means for your engine and fuel economy.