Quoting myself here, but I filled up last night, and confirmed a huge increase in fuel mileage with my thermostat change. That's two tanks in a row, one B33, one B65 where I got 46mpg, 6mpg better than previous tanks. My worn out thermostat was regulating 165F before, now 192F.
That's a 15% gain!!
Quote:
Originally Posted by UFO
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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