If you have ever wondered whether driving faster actually saves time and fuel, you are not alone. The truth is, finding the balance between speed and fuel efficiency is crucial for your wallet, especially if you want to save money on gas. Let’s break down the science of speed and show how smart driving can make your fuel go further.

The Ideal Speed Range: Stay Between 45 and 65 MPH

For most vehicles, the sweet spot for fuel efficiency sits between 45 and 65 miles per hour. According to the U.S. Department of Energy, gas mileage usually decreases rapidly at speeds above 50 mph. Specifically, every 5 mph you drive over 50 is like paying an additional $0.20 per gallon of gas. So if you are aiming to earn cashback on fuel and stretch your tank, maintaining this speed range is key.

Fuel Efficiency Showdown: 55 vs. 65 vs. 75 MPH

Let’s compare. At 55 mph, your car runs at peak efficiency, often delivering optimal miles per gallon (MPG). Increase your speed to 65 mph, and you typically lose 8–10% of fuel efficiency. Push it further to 75 mph, and you could burn up to 20% more fuel than you would at 55 mph. Over the course of a year, this difference can cost hundreds of dollars in wasted gas—unless you’re offsetting costs with cashback tools like Fluz or Ibotta.

Maintain Steady Speed: Simple Habits That Work

Cruise control is your best friend on open highways. It keeps your speed steady and avoids the fuel-wasting spikes from acceleration and braking. Plan routes that minimize stop-and-go traffic, and you will not only enjoy smoother rides but also get fuel at a discount with Fluz gift cards purchased right before you fill up.

Wrap-Up: Smart Driving Pays Off

Smart driving is not just good for your fuel tank—it is good for your wallet. By keeping your speed within the efficient range, combining smart route planning, and using cashback apps like Fluz and Ibotta, you make every mile count. Whether you are commuting daily or road-tripping on weekends, consistency at the wheel leads to big savings over time.