Quote:
Originally Posted by F8L
There is a benefit to using a big rig as a traffic blocker for you. Traveling at a safe distance behind one can allow you to travel at a slower speed without negatively affecting faster traffic as much as you would if you traveled slow with the rig as a blocker. People can see the rig from far away and maneuver themselves around it (and you) in a much safer manner than if they just came upon you suddenly in their way.
I have found very minor benefit from the drafting affect when you are at what I consider a safe distance. I use Scangauge to confirm this. So I don't drive behind a big rig unless I want to drive slower than the rest of the traffic.
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Same here, in my Acura, around 1.5-2mpg diff in lean-burn, and 0.2-0.4 out of it.
In my (recently traded in) Dodge 1500, I saw a 4mpg difference. That's not a typo.