---
title: "How to Improve Gas Mileage and Reduce Fuel Costs"
description: "Boost your fuel economy 10-15% with tire pressure checks, regular maintenance, and smoother driving. Save $200-300 yearly on gas."
canonical: "https://sidekick.vin/answers/how-can-i-improve-my-infiniti-qx60s-gas-mileage-and-reduce-fuel-costs"
type: "qa"
vertical: "fuel"
lastModified: "2026-04-27T13:07:20.137Z"
keywords: ["improve fuel economy", "reduce fuel costs", "better gas mileage", "how to save on gas", "fuel efficiency tips"]
---
# How can I improve my Infiniti QX60's gas mileage and reduce fuel costs?

> **Quick Answer:** Most drivers can boost fuel economy by 10-15% through proper tire pressure, regular maintenance, and smoother driving habits. These changes typically save $200-300 annually on fuel.

**Category:** fuel
**Question Type:** how-to

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---
# How to Improve Gas Mileage and Reduce Fuel Costs

Most drivers can boost fuel economy by 10-15% through simple maintenance and driving changes. Since fuel costs average $2,000 per year, small improvements add up quickly.

## Quick Wins You Can Do Today

**Check your tire pressure.** Underinflated tires reduce fuel economy by up to 3%. Check your vehicle's door jamb for the correct PSI and fill tires monthly. This is the fastest, cheapest fix.

**Remove extra weight.** Every 100 pounds of cargo reduces fuel economy by 1-2%. Clear your trunk of items you don't need regularly. Roof racks and carriers increase wind resistance and hurt efficiency too.

**Drive smoother.** Aggressive acceleration and hard braking waste fuel. Gradual speed changes, steady highway driving, and coasting to red lights improve economy by 5-10%. Speeding costs more: every 5 mph over 50 mph is like paying an extra 20 cents per gallon.

## Maintenance That Matters

**Replace air filters.** A dirty air filter reduces fuel economy by up to 10%. Most need replacement every 12-15 months. Cost: $30-60. Savings: $150-300 per year.

**Get regular tune-ups.** Worn spark plugs and dirty fuel injectors hurt efficiency. Follow your vehicle's maintenance schedule. A tuned engine runs 10-20% more efficiently.

**Use the right oil.** Switch to the manufacturer's recommended grade. Using thicker oil than recommended increases drag and reduces economy by 1-2%.

**Keep your engine properly tuned.** A misfiring engine can reduce fuel economy by 20%. Get check engine lights diagnosed immediately.

## Fuel and Driving Habits

**Combine trips.** Multiple short trips use more fuel than one longer trip. Plan errands together to reduce miles driven.

**Avoid idling.** Idling gets 0 miles per gallon. Turn off the engine if you'll be stopped for more than 10 seconds.

**Use cruise control.** On highways, cruise control maintains constant speed and improves economy by 5-10%.

**Fill up at cooler times.** Gas expands in heat, so you get slightly less fuel when filling at the hottest part of the day.

## The Numbers

Improving fuel economy from 20 to 22 MPG saves roughly $200-300 per year on fuel at current gas prices. Better habits plus maintenance fixes can realistically achieve 10-15% improvement.

Tracking your fuel costs helps identify what works. Use your vehicle's trip computer or a fuel app to monitor economy over time. You'll see results from each change and stay motivated to maintain these habits.