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Suggestion from Gas Mileage Calculator

If you’re looking to get the best fuel efficiency, the most effective options are carpooling, using public transportation, or walking/biking. But if driving is necessary, here are practical tips to help you maximize your gas mileage:

1. Drive a Fuel-Efficient Vehicle

Choose a vehicle known for good fuel economy. You can compare fuel efficiency ratings at fueleconomy.gov. In general, four-wheel drive (4WD) vehicles consume more fuel than front-wheel (FWD) or rear-wheel drive (RWD) vehicles, as the engine works harder to power all four wheels—especially at higher speeds.

2. Maintain Proper Tire Pressure and Alignment

Under-inflated tires can reduce fuel efficiency by about 0.3% for every 1 PSI drop. Soft tires waste energy as they flex more, reducing forward momentum. Check your tire pressure regularly using the vehicle’s manual or the markings on the tire sidewalls, and make sure your wheels are properly aligned to avoid additional drag.

3. Drive at Optimal Speeds

When permitted by speed limits, aim to drive around 55 MPH (90 km/h), which is generally the sweet spot for fuel efficiency, according to the U.S. Department of Energy. Using cruise control on long, flat highways helps maintain steady speeds and reduces unnecessary acceleration and braking.

Here’s how fuel efficiency drops at higher speeds:

• 60 MPH (97 km/h): ↓ 3%
• 65 MPH (105 km/h): ↓ 8%
• 70 MPH (113 km/h): ↓ 17%
• 75 MPH (121 km/h): ↓ 23%
• 80 MPH (129 km/h): ↓ 28%

4. Avoid Aggressive Driving

Fast acceleration and hard braking waste fuel. Smooth, steady driving can improve mileage by 15–30% on highways and 10–40% in stop-and-go traffic. It also reduces wear on your brakes and engine.

5. Keep Your Vehicle Well-Maintained

Routine maintenance can improve fuel economy by 1–2%. Key tips include:

• Use the recommended motor oil (e.g., 10W-30 if specified).
• Keep the engine properly tuned.
• Replace a faulty oxygen sensor promptly.
• Check and replace air filters if they’re clogged with debris.
• Address any issues that cause your car to fail an emissions test.

6. Remove Unnecessary Weight

The heavier the car, the more fuel it uses. Lighten your load by removing items you don’t need—especially heavy or bulky equipment. For example, if you’re not using a trailer, bike rack, or rooftop storage, detach it when not in use.

7. Reduce Drag

At highway speeds, open windows or external racks increase air resistance (drag), forcing your engine to work harder. Keep windows rolled up and remove roof/bike racks when not needed. Using the air conditioner may be more efficient than driving with windows down on the highway.

8. Use Air Conditioning Wisely

In hot climates, using AC can reduce fuel efficiency by up to 25%. To conserve fuel:

• Avoid setting the AC too high, especially when idling.
• Use it more during driving, as it’s more efficient when the vehicle is in motion.

9. Avoid Idling

An idling engine gets zero miles per gallon. If you’re going to be stopped for more than a minute or two, it’s usually better to turn off the engine.

Why It Matters

These habits not only save you money on gas and vehicle maintenance but also reduce your carbon footprint. By driving more efficiently, you’re helping protect the environment—one mile at a time.