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Originally Posted by mattbatson
I recently discovered that you can be 50 to 100 ft back and still see a benefit?
I heard mythbusters found a pretty significant increase all the way back to 100ft? Or did i hear wrong?
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The effect is there all right.
Obviously, the closer you get the more significant the effect becomes.
You can try it by closing in on one, and see the instant fuel economy improve as you close the gap.
Trucks are limited to 90 kph / 56mph over here (some even down to 85 kph voluntarily by the hauling company), so most cars are faster.
I sometimes hitch on to a semi at a fair distance (so the driver doesn't get annoyed) and stay there.
On occasion, the instant fuel economy readout was over 100mpg @ 52 mph !
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I am pretty confident that i can still be safe at 50-100 ft back
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Definitely not at the 50' mark.
100' is more like it.
But I too get a lot closer on occasions.
