Even if it did yield better FE, from a cost perspective it would have to make up for that 20 cents or so per gallon to truly make it economical. I wouldn't mind seeing some data on it. I'm not quite sure it's worth the gamble of higher fuel prices for few tanks, personally. I'm sure it's been looked at before somewhere.
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"It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived."
- General George S. Patton, Jr
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