Fuel economy isn’t just about your driving habits—vehicle maintenance plays a major role in how efficiently your car burns fuel. Fortunately, improving your miles per gallon (MPG) doesn’t require an overhaul or a new engine. With a few regular checks and smart decisions, you can boost your car’s fuel efficiency and save money in the long run. Here are five maintenance tips that can make a measurable difference.
- Keep Your Tires Properly Inflated
Under-inflated tires increase rolling resistance, forcing your engine to work harder. Even a few PSI below the manufacturer’s recommendation can reduce your fuel economy by up to 3%.
What to Do:
- Check tire pressure monthly and before long drives.
- Inflate tires to the pressure listed on your driver’s side door placard (not the number on the tire itself).
- Adjust pressure more frequently during temperature swings—cold air causes tire pressure to drop.
Pro Tip: Many gas stations have free air pumps. For a more convenient option, consider purchasing a portable tire inflator from merchants like Advance Auto Parts or AutoZone.
- Replace Dirty Air Filters
A clogged air filter restricts airflow to your engine, causing it to burn more fuel to compensate. While newer vehicles have sensors that adjust for this, efficiency can still suffer.
When to Replace:
- Every 12,000 to 15,000 miles (or more often in dusty climates)
- Check your owner’s manual for specific intervals
DIY or Mechanic?
This is an easy DIY fix—most air filters can be swapped out in under 10 minutes with no tools.
- Use the Right Motor Oil for Your Engine
Using the wrong oil viscosity can reduce fuel efficiency and engine performance. Modern engines are designed to work with specific oil grades, which optimize friction and lubrication.
Check For:
- The correct SAE grade (e.g., 5W-30, 0W-20) recommended by your manufacturer
- Labels like “Energy Conserving” or “Fuel Economy” on the oil bottle
DIY or Mechanic?
While many drivers prefer to leave oil changes to a professional, it’s possible to do it yourself with basic tools. If you go the DIY route, shop quality oil at trusted outlets like Walmart or Advance Auto Parts.
- Get Your Wheel Alignment Checked
Misaligned wheels cause uneven tire wear and increase rolling resistance, which lowers MPG. You may not always feel a pull on the wheel—but alignment issues can still be costing you fuel.
When to Check:
- If your car pulls left or right
- After hitting a large pothole or curb
- Annually, or during major tire service
DIY or Mechanic?
Alignment is not a DIY job. Visit a certified mechanic or tire shop that offers laser alignment services. This quick fix can boost fuel efficiency and extend tire life.
- Don’t Skip Routine Tune-Ups
A misfiring spark plug, malfunctioning oxygen sensor, or clogged fuel injector can drag down fuel efficiency without triggering a check engine light.
What to Do:
- Follow your vehicle’s maintenance schedule
- Ask your mechanic to inspect the fuel and ignition systems during annual service
- Use high-quality replacement parts for better longevity
Need a place to stock up?
Shop maintenance items from reliable merchants like AutoZone, Ace Hardware, or CVS for cleaning fluids, gloves, or tools.
Routine maintenance doesn’t just protect your vehicle—it also saves you money every time you fuel up. These small adjustments can add up to significant gains in MPG, making your daily commute or road trip more cost-efficient and reliable. Whether you’re commuting with Commute Link or heading cross-country with TrailBliss Travel, your fuel efficiency starts with smart, simple maintenance.
