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Re: a/c charged and cooling
10 MPG is quite low. Is there a chance that your odometer might not be accurate? I have a 6.0 with 3.73 gears and average about 15MPG around town on 2 different trucks (1986 long bed, 84 stepside). They both run at 195 degrees. Fans come on at 205 IIRC.
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