How to Improve RV Gas Mileage on Long Trips

Fuel costs can add up fast when you’re towing a travel trailer or driving a large motorhome. That’s why knowing how to improve RV gas mileage on long trips can make a big difference in your travel budget—and your overall driving experience.

Why RVs Use So Much Fuel

RVs are heavy, tall, and often not very aerodynamic. Whether you’re driving a Class A motorhome or towing a fifth wheel, common fuel challenges include:

  • High wind resistance
  • Heavy loads
  • Frequent stops and starts
  • Low tire pressure
  • Poor engine maintenance

At Daisy RV, we offer performance checks and maintenance to help boost your fuel economy before hitting the road.

Practical Tips to Improve RV Gas Mileage

1. Keep Your Tires Properly Inflated

  • Underinflated tires increase rolling resistance
  • Check pressures before every trip and adjust based on load
  • Consider a tire pressure monitoring system (TPMS)

2. Lighten Your Load

  • Only bring the essentials—excess weight burns more fuel
  • Drain holding tanks before travel
  • Remove unneeded gear or equipment in storage bays

3. Use Cruise Control Wisely

  • On flat highways, cruise control maintains efficient speeds
  • Avoid using it in hilly or windy areas where manual control works better

4. Drive at the Right Speed

  • RVs get better fuel economy around 55–65 mph
  • Every 5 mph over 60 can reduce mileage significantly

5. Keep Up With Engine Maintenance

  • Replace air filters, spark plugs, and fuel filters on schedule
  • Use the correct oil grade and change it regularly
  • A clean-running engine burns fuel more efficiently

Schedule a pre-trip inspection with Daisy RV to ensure your RV is tuned up and road-ready.

6. Reduce Wind Drag

  • Remove rooftop cargo when not needed
  • Close awnings, vents, and slide toppers
  • Use a wind deflector if towing a trailer with a tall truck cab

7. Plan Routes Strategically

  • Avoid heavy traffic, frequent stops, and steep grades when possible
  • Use RV-friendly apps to choose fuel-efficient paths
  • Combine errands and stops to reduce unnecessary miles

Fuel-Saving Accessories to Consider

  • Fuel additives (when appropriate for your engine)
  • High-flow air filters for better intake efficiency
  • Transmission coolers to reduce strain on the drivetrain
  • Performance tuners (for diesel rigs) to optimize fuel maps

Every MPG Counts

Even small changes can add up over a long trip. If you normally get 8 mpg and boost it to 10, that’s 100 extra miles per tank on a 50-gallon fill-up.

Knowing how to improve RV gas mileage on long trips helps you travel farther, save money, and reduce wear and tear on your vehicle—all while keeping your adventures going strong.

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