Drivers are always looking for ways to save money at the pump, but not all advice is created equal. Some common fuel-saving tips are outdated, exaggerated, or simply wrong. Here are seven popular gas-saving myths—and the real truth behind them.
- Myth: Premium Gas Boosts Fuel Economy in All Cars
Truth: Unless your vehicle specifically requires premium fuel, using it will not improve your mileage or performance. Regular gas works just as efficiently for most cars. - Myth: Idling is Better Than Restarting Your Car
Truth: Modern engines are designed to handle frequent starts and stops. Idling for more than 60 seconds wastes more fuel than restarting your car. If you’re waiting, shut it off. - Myth: Warming Up Your Car Improves Fuel Economy
Truth: Unless you live in extremely cold conditions, idling your car to warm it up just burns gas unnecessarily. Modern engines are designed to be driven almost immediately after starting. - Myth: Small Cars Always Get Better Gas Mileage Than Larger Cars
Truth: While smaller cars often have better mileage, modern advancements mean many SUVs and crossovers now have highly efficient engines. Hybrids and plug-in hybrids often outperform compact cars on MPG. - Myth: Topping Off Your Gas Tank Gets You More Fuel
Truth: Continuing to pump after the nozzle clicks off wastes gas and could damage your vehicle’s vapor recovery system. When it clicks, it’s time to stop. - Myth: Rolling Down Windows is Always More Efficient Than Using AC
Truth: At low speeds, windows down saves energy. However, at highway speeds, open windows create aerodynamic drag, which can actually use more fuel than running the air conditioner at a moderate setting.
7. Myth: Keeping Your Tank Full Improves Fuel Economy
Truth: Carrying extra fuel weight slightly decreases mileage, not improves it. There’s no evidence that having a full tank improves performance or efficiency—though it can prevent running out of gas during shortages.
