2024 Full-Size SUVs With the Longest Driving Range

The Challenge of Fuel Efficiency in Full-Size SUVs

Full-size SUVs face an inherent efficiency paradox - their massive dimensions and weight (often exceeding 5,500 pounds) typically result in higher fuel consumption, yet their generous proportions allow for larger fuel tanks that can significantly extend driving range. Unlike pickup trucks where extended-range fuel tanks are frequently optional, most SUV manufacturers build a single tank size into their designs.

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Modern full-size SUVs increasingly employ turbocharging, cylinder deactivation, and mild hybrid systems to improve efficiency without sacrificing performance. The shift away from traditional V8 engines to turbocharged V6 and even four-cylinder powertrains has significantly impacted range capabilities in recent model years.

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2024's Longest-Range Full-Size SUVs

Our analysis focuses on current-generation models with the highest estimated driving range based on EPA combined ratings and manufacturer fuel tank specifications. All figures assume 55% city and 45% highway driving as per EPA testing standards.

Premium Luxury Segment

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Mainstream Family Segment

Technology Improving SUV Range

Manufacturers are implementing several advanced technologies to extend driving range without compromising the capabilities expected from full-size SUVs:

Powertrain Innovations

• Turbocharged downsizing: Modern 3.0L six-cylinder engines now outperform traditional 5.7L V8s
• Mild hybrid systems: 48V architectures enable smoother start-stop and energy recuperation
• Advanced transmissions: 10-speed automatics keep engines in optimal efficiency ranges
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Aerodynamic Improvements

• Active grille shutters that close at highway speeds
• Underbody panels to smooth airflow
• Optimized roof profiles and mirror designs

Weight Reduction

• High-strength steel and aluminum body structures
• Composite materials for non-structural components
• Modular platform sharing to increase production efficiency
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Real-World Range Considerations

While EPA estimates provide a standardized comparison point, actual driving range can vary significantly based on:

Factors That Increase Range

• Consistent highway driving (65-70 mph optimal)
• Properly inflated tires (3% range improvement)
• Minimal roof cargo (up to 15% impact)
• Moderate climate conditions (extreme heat/cold reduces efficiency)
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Factors That Decrease Range

• Heavy payload or towing (25-40% reduction when maxed)
• Aggressive acceleration and braking (10-33% impact)
• Cold weather operation (15-24% reduction at 20°F)
• Aftermarket wheels/tires (5-15% penalty)

Future Trends in SUV Range

The SUV segment continues to evolve with several emerging technologies that promise even greater range:

Plug-In Hybrid Electric (PHEV) SUVs

Models like the Jeep Grand Cherokee 4xe combine electric-only range (25+ miles) with traditional internal combustion for total ranges exceeding 500 miles while offering significantly better local emissions.

Advanced Diesel Options

Clean diesel technology continues to improve, with new emissions systems making modern diesels cleaner while maintaining their inherent efficiency advantages for long-distance travel.

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Hydrogen Fuel Cell Development

While still in early stages for consumer vehicles, hydrogen-powered SUVs like the Toyota Mirai demonstrate the potential for 400+ mile ranges with 5-minute refueling times.

Choosing the Right Long-Range SUV

When evaluating full-size SUVs for maximum driving range, consider these key decision factors:

Primary Use Case

• Family road trips: Prioritize maximum range and comfort
• Towing/hauling: Balance range with payload capacity
• Luxury travel: Consider premium models with efficient powertrains

Fuel Type Considerations

• Gasoline: Widest availability, moderate efficiency
• Diesel: Best for long-distance, higher fuel costs
• Hybrid: Urban efficiency with extended range
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Budget Factors

• Initial purchase price vs long-term fuel savings
• Maintenance costs (diesels typically higher)
• Resale value projections