jcp, it's possible your car doesn't like the load that high. You have to find the sweet spot for each individual car. My Civic liked HIGH load, but the Fit does better at ~70 instead of 85 load. And it's not because of open loop either - the Fit won't go Open until it's actually floored.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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