4 ms·
For most vehicles, you see fuel efficiency start to take a hit around 55mph. The thing is that the velocity term in the air resistance equation is squared, so a
by cjohnson318 5y ago
For most vehicles, you see fuel efficiency start to take a hit around 55mph. The thing is that the velocity term in the air resistance equation is squared, so at some point your fuel efficiency starts dropping very, very quickly.