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What is the thermostat rating for the 4.2?

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Old 02-07-2004, 12:32 AM
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Stampede
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What is the thermostat rating for the 4.2?
Also will lowering the thermostat rating, improve fuel mileage?
Thanks Stampede
 
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Old 02-07-2004, 12:39 AM
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Should be 195. Lowering it will increase engine wear and decrease mileage because the computer will richen the mixture to compensate.
 
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