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Hiya,
An update on the first tankful with the Plexiglas rear wheel skirts -- they added ~1-1 1/2mpg, which is certainly something, but a bit less than I'd hoped. I got my best mileage so far -- 47.5mpg, which is ~0.8mpg better than my previous best tankful.
I will be getting a sheet of Coroplast on Monday (or so), so I will make a new version that cover up more of the wheel -- they will have to wedge out at the bottom to clear around the wheel. Maybe this will improve things some more?
After that, I'm going to try some metal foil tape on the alloy wheels (though this will not be able to cover more than half, due to the pattern and the location of the valve stem). And, I'm hoping to do something with the front wheels; just not full covers. And I'd like to finalize the upper grill block, and possibly do a partial lower grill block, too.
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