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Two questions:
1] what is the best formula for venting a 240 via the windows. Should you just have the window down on the drivers side? or both the front windows? or the front drivers side window and the passenger rear window? Or both of the drivers side window. It's hard to determine and it's a pain to have to stop on the side of the road and adjust here and there, it would be easier to just drop the windows and then start driveing.
2] How close do you have to be to a big truck or large vehicle to reap the benefits of 'drafting'? I'd like a little better mileage on big trips.
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