2 ms·
The highest gear's most efficient peak of most "consumer" cars maximizes efficiency around 65mph. The NHTSA considered efficiency along with safety when making
by smileysteve 14y ago
The highest gear's most efficient peak of most "consumer" cars maximizes efficiency around 65mph. The NHTSA considered efficiency along with safety when making their recommendation so many years ago.
- nawitus 14y ago65mph is slightly too high for most models. http://en.wikipedia.org/wiki/File:Fuel_economy_vs_speed_1997.png http://en.wikipedia.org/wiki/File:Fuel_economy_vs_speed_1997...