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Old 01-15-2011, 05:55 PM   #5 (permalink)
UFO
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Join Date: Sep 2010
Location: Denver, CO
Posts: 1,300

Colorado - '17 Chevrolet Colorado 4x4 LT
90 day: 23.07 mpg (US)
Thanks: 315
Thanked 179 Times in 138 Posts
I just got a big jump in economy by replacing my thermostat. It was running coolant temperature at 165F with the worn out part. Now it runs 192F. Completely fooled the ScanGauge, I was running normal tank mileage around 40mpg, filled up today and I actually had 46mpg. And I calibrated my pump nozzle just to be sure, I was so surprised. I filled the tank the same way too, but if it didn't really fill, I will catch the drop next fillup.
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