17. Drive at 55–65 mph on Highways for Maximum Fuel Efficiency
Every mile per hour over 65 dramatically increases drag and fuel consumption. Staying between 55–65 mph on open highways can improve mileage by 6–8 mpg compared to 75+ mph. Combine this with smooth acceleration and you’ll see real savings at the pump.
It also reduces engine and tire wear while lowering accident risk. Real long-distance drivers plan routes and speeds around this sweet spot, arriving relaxed with more money in their pocket. The difference adds up quickly on cross-country trips.
