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Old 12-19-2019, 05:33 PM   #7 (permalink)
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Join Date: Apr 2012
Location: Evensville, TN
Posts: 597

Deep Blue - '94 GMC Suburban K2500 SLE
90 day: 23.75 mpg (US)

Griffin (T4R) - '99 Toyota 4Runner SR5
90 day: 25.43 mpg (US)
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Coolant temps too low should be an indicator of your thermostat, which should continue to recirculate the water until it hits the desired temp. Unless you have a crazy big oil cooler on it. Do you have a controller on the electric fans?

Auto transmission or stick?

Your best results would be from a sloped aero bed cover, on my old truck for a while I had a partial bed cover that only was from the cab back the first couple feet. It really didn't impact usability much, but I got a 5% MPG boost. Spats out of conveyor belt in front of the front tires would also help out.
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