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operating temp

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Old Jan 21, 2011 | 05:11 PM
  #1  
great white's Avatar
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Joined: Dec 2010
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From: duvall,wa
Year: 1987
Model: Cherokee
Engine: 4.0
Default operating temp

In my 94 5.2 GC it wont get above 150ish on the temp gauge so im guess it has a stuck open t-stat, but will it running that cool cause crappy fuel mileage? I know on the newer cars it will I just didn't know about these ones, I just recently bought this so I don't know what there suppose to run at
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Old Jan 21, 2011 | 06:54 PM
  #2  
Bustedback's Avatar
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Joined: Feb 2010
Posts: 12,367
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Running too cool will in fact cause the mileage to be lower than if the engine were at operating temp.
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