Quote:
Over 55 the benefit of the cleaner air is overcome by all the other factors of increased speed.
I'm a big fan of minimum safe following distances. Two seconds is good three is better. The faster the truck is going the further back you should follow. 65-75 feet at 55 is way closer than what is safe. At 65+ that distance is plain stupid. I don't like people riding my butt, why would I do it to others?
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I agree. Safety is more important to me than miniscule increases in fuel economy.