Daughter needs Gas mileage from 273 commando

BillGrissom said

...The best way to get good mileage on the highway is to follow a semi. I did see the MythBuster's episode where they supposedly discounted that, ...

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I do not believe anything they do. I can guarantee you that following a Semi will add to mpg, just do not get too close, they do not like that. Used to run cross country and did that all the time. Watch a vacuum gage and try it sometime.