Drafting behind bus on for fuel economy(video)

[Piwoslaw]

Originally Posted by Bicycle Bob

Once upon a time, long, long ago, I was slogging through slush, stuck in slow traffic and low visibility, when I got spattered by a Greyhound with schedule on his mind. I jumped on behind and had a great run. There were just enough holes in the traffic for someone with a high seat to maintain speed. I probably saved gas, as well as time.

Hmm, drafting in a traffic jam. Like those who stay on the tail of an ambulance/fire truck plowing through traffic. It's drafting, but the medium isn't air, it's other cars

[PA32R]

Originally Posted by basjoos

Just aeromod your car to the point to where drafting produces little improvement on your mileage, then the whole drafting/safety discussion is rendered a non-issue. If all cars were shaped like mine, then drafting would be irrelevant to improving mileage.

Only in the sense that a, for example, 3% increase in gas mileage is smaller in absolute terms of fuel savings per mile driven for your car than for mine. But driving in air that's, again for example, 5% less dense during drafting will have the same per cent lowering of your aerodynamic drag as it does for mine.

[theunchosen]

alright another trip down with semi-surfing. Averaged above 45 mpg both ways with the targa/trans top off and windows down(really hot and no AC(It didn't work and I deleted all the components in about 20 minutes this weekend.))

Unfortunately I could no maintain a truck escort the whole way either way. I had to pull over to get something to drink or risk falling asleep and both times I was unable to locate another suitable "plow."