Real Gas Mileage of the 2024 Toyota Grand Highlander

The 2024 Toyota Grand Highlander delivers impressive gas mileage for a three-row SUV, with the hybrid model leading the pack at up to 36 MPG on the highway. Whether you choose the hybrid or the V6, this vehicle offers strong fuel economy that makes it a smart pick for families who want power and efficiency in one package.

If you are shopping for a family SUV and the 2024 Toyota Grand Highlander is on your shortlist, one of the first questions you probably have is about gas mileage. Nobody wants to spend a fortune at the pump every week. The good news is that Toyota engineered this vehicle with fuel efficiency in mind, and the numbers speak for themselves.

The Grand Highlander gas mileage varies depending on which trim and engine you choose. The hybrid version stands out as the clear winner when it comes to saving fuel. But even the V6 model delivers respectable numbers for a vehicle of this size. In this guide, we break down everything you need to know about the real-world fuel economy of the 2024 Grand Highlander. We will cover EPA ratings, owner-reported data, and practical tips to help you get the most out of every gallon.

Key Takeaways

• The hybrid Grand Highlander leads in fuel economy: It achieves up to 36 MPG on the highway, making it one of the most efficient three-row SUVs in its class.
• The V6 model still holds its own: With an estimated 22 MPG combined, the V6 offers solid fuel economy for a powerful engine.
• Real-world MPG may vary: Driving habits, terrain, and load all play a role in your actual fuel economy numbers.
• Simple driving tips boost MPG: Smooth acceleration, proper tire pressure, and regular maintenance can improve your gas mileage significantly.
• The hybrid system adds range: The electric motor assists the gas engine, reducing fuel consumption especially in city driving.
• A full tank goes a long way: With a 17.9-gallon tank, the Grand Highlander can travel over 600 miles on a single fill-up on the highway.

What Is the Gas Mileage of the 2024 Toyota Grand Highlander?

The 2024 Toyota Grand Highlander offers two powertrain options, and each comes with its own fuel economy profile. Understanding these numbers helps you make an informed decision before you buy. Let us look at what Toyota officially rates and what real owners are reporting on the road.

EPA Estimated MPG Ratings

The Environmental Protection Agency provides official estimates for every new vehicle. For the 2024 Grand Highlander, here is what the EPA says:

• Hybrid (Front-Wheel Drive): 36 MPG highway, 27 MPG city, 30 MPG combined
• Hybrid (All-Wheel Drive): 35 MPG highway, 26 MPG city, 29 MPG combined
• V6 (Front-Wheel Drive): 22 MPG combined
• V6 (All-Wheel Drive): 21 MPG combined

These numbers put the Grand Highlander in a strong position compared to many competitors. The hybrid system plays a big role here. Toyota’s hybrid powertrain uses an electric motor to assist the gas engine, which reduces fuel consumption, especially in stop-and-go traffic. If you drive mostly in the city, the hybrid version will save you a noticeable amount at the pump.

Real-World MPG Reports from Owners

EPA estimates are a great starting point, but they do not always match real life. Many Grand Highlander owners report their real-world MPG on forums and review sites. Here is what you can expect:

• City driving: Most owners report 24 to 28 MPG with the hybrid and 17 to 19 MPG with the V6.
• Highway driving: Hybrid owners commonly see 33 to 37 MPG, while V6 drivers report 20 to 23 MPG.
• Mixed driving: The average falls around 28 to 32 MPG for the hybrid and 19 to 21 MPG for the V6.

These numbers can vary based on several factors, which we will explore in detail below. The key takeaway is that the hybrid version consistently outperforms the V6 in fuel savings, and the gap becomes even wider in city driving conditions.

Grand Highlander Hybrid vs V6 Fuel Economy

Choosing between the hybrid and the V6 is one of the most important decisions you will make. Each option has its own strengths, and your driving style should guide your choice.

Hybrid Powertrain Details

The 2024 Grand Highlander hybrid uses a 2.5-liter four-cylinder engine paired with two electric motors. Together, this system produces 243 horsepower. The electric motor handles low-speed driving and assists during acceleration, which means the gas engine works less hard and uses less fuel. This is why the hybrid delivers such strong fuel efficiency numbers.

The hybrid system also features regenerative braking, which captures energy during deceleration and stores it in the battery. This energy gets reused later, reducing the load on the gas engine. Over time, these small efficiencies add up to significant fuel savings.

V6 Engine Performance

The V6 option comes with a 3.5-liter engine that produces 296 horsepower. It is a powerful engine that makes the Grand Highlander feel responsive and capable, especially when towing or carrying a full load of passengers. However, all that power comes at a cost. The V6 uses more fuel than the hybrid, particularly in city driving where the engine works harder.

If you need the extra towing capacity or frequently haul heavy loads, the V6 makes sense. But if your priority is saving money on fuel, the hybrid is the clear choice.

Factors That Affect Your Grand Highlander Gas Mileage

Your actual gas mileage depends on more than just the engine type. Several everyday factors influence how much fuel your Grand Highlander uses. Understanding these can help you manage your expectations and improve your numbers.

Driving Habits and Conditions

How you drive has a huge impact on fuel economy. Aggressive acceleration, hard braking, and speeding all burn more gas. Smooth, steady driving is the best way to maximize your MPG. If you live in a city with lots of stoplights and traffic, your fuel economy will naturally be lower than someone who drives mostly on open highways.

Weather also plays a role. Cold temperatures can reduce fuel efficiency by 10 to 20 percent in the winter months. Hot weather can increase the load on your air conditioning system, which also affects mileage. Driving at higher altitudes or on hilly terrain will use more fuel as well.

Vehicle Weight and Load

The Grand Highlander is a large SUV, and it weighs a lot. The average weight of a Toyota RAV4 is around 3,400 pounds, while the Grand Highlander tips the scales closer to 4,400 pounds for the hybrid and over 4,600 pounds for the V6. More weight means more fuel is needed to move the vehicle.

When you fill the vehicle with passengers and cargo, the weight increases further. A fully loaded Grand Highlander with seven passengers and luggage will use more fuel than an empty one. This is something to keep in mind if you frequently travel with a full load.

Towing and Accessories

If you plan to tow a trailer or boat, expect your gas mileage to drop. Towing adds significant resistance to the engine, and the Grand Highlander’s fuel economy suffers accordingly. Even roof racks and cargo carriers create aerodynamic drag that reduces efficiency. Removing accessories when you do not need them can help you save fuel.

Tips to Improve Fuel Economy in Your Grand Highlander

Want to get the best possible gas mileage from your Grand Highlander? These practical tips can help you squeeze more miles out of every gallon.

Driving Techniques That Save Fuel

• Accelerate gently: Press the pedal smoothly instead of flooring it. Quick acceleration burns more fuel.
• Maintain a steady speed: Use cruise control on the highway to keep your speed consistent.
• Anticipate stops: Ease off the gas early when you see a red light or slowdown. This reduces braking and saves fuel.
• Keep your speed under 70 mph: Fuel economy drops significantly at higher speeds due to increased aerodynamic drag.

Maintenance Habits That Help

Keeping your Grand Highlander in good shape directly impacts your fuel economy. Here are simple maintenance steps that make a difference:

• Check your tire pressure regularly: Underinflated tires create more rolling resistance, which forces the engine to work harder.
• Use the recommended motor oil: The right viscosity oil reduces engine friction and improves efficiency.
• Replace air filters on schedule: A clogged air filter restricts airflow to the engine, which wastes fuel.
• Keep the hybrid battery healthy: A well-maintained hybrid battery ensures the electric motor assists the gas engine effectively.

Fueling Habits That Matter

How you fill up your tank also affects your overall fuel costs. One common question is whether it is better to fill a gas tank full or half. Filling it completely reduces the amount of air in the tank, which minimizes fuel evaporation. It also means fewer trips to the gas station, saving you time and fuel.

Another tip is to pay attention to how long gas can sit in your car before going bad. Gasoline typically lasts three to six months in a properly sealed tank. Old fuel can cause engine problems that reduce efficiency over time. If you drive infrequently, try to use up your fuel within a few months.

How Far Can You Go on a Single Tank?

The Grand Highlander comes with a 17.9-gallon fuel tank. With a full tank and the hybrid engine, you can expect a range of over 600 miles on the highway. The V6 model offers a more modest range of around 400 to 450 miles depending on driving conditions.

Knowing how far past empty your car can go gives you peace of mind on long road trips. Most Grand Highlander owners report being able to drive an extra 30 to 40 miles after the low fuel warning light comes on. However, it is always best to refuel as soon as possible to avoid straining the fuel pump.

If you are planning a long trip, consider how many gallons it takes to fill up a car at your local station. The Grand Highlander’s tank holds 17.9 gallons, and with current fuel prices, a full tank can cost anywhere from $60 to $80 depending on gas prices in your area. These costs add up over time, which is another reason the hybrid version delivers better long-term value.

Is the Grand Highlander Good on Gas Compared to Competitors?

The 2024 Toyota Grand Highlander holds its own against other three-row SUVs in the market. Here is how it compares to some popular competitors in terms of combined fuel economy:

• Grand Highlander Hybrid: 30 MPG combined
• Grand Highlander V6: 22 MPG combined
• Chevrolet Traverse: 21 MPG combined
• Ford Explorer: 23 MPG combined
• Honda Pilot: 22 MPG combined

The hybrid Grand Highlander leads this group in fuel economy, which is impressive for a vehicle that seats up to eight passengers. Even the V6 version competes well with other large SUVs on the market. Toyota’s reputation for reliability and efficiency gives the Grand Highlander a strong advantage over the competition.

If you are also curious about how the Grand Highlander compares to other Toyota models, you might want to check out the gas mileage of a 2024 Toyota Grand Highlander side by side with the Highlander hybrid. The Grand Highlander offers more seating capacity while still delivering strong fuel economy, making it a great choice for larger families.

Common Mistakes That Hurt Your Grand Highlander’s Fuel Economy

Even the most efficient vehicles suffer from bad habits. Here are some common mistakes that can reduce your Grand Highlander’s gas mileage:

• Ignoring the check engine light: A malfunctioning sensor or system can significantly reduce fuel efficiency. Address warning lights promptly.
• Carrying unnecessary weight: Extra items in your trunk add weight and force the engine to work harder. Clean out what you do not need.
• Using the wrong fuel grade: The Grand Highlander requires regular unleaded gasoline. Using a higher octane fuel will not improve performance or economy.
• Leaving the A/C on full blast: Air conditioning puts extra load on the engine, especially at low speeds. Use the fan on lower settings when possible.
• Skipping oil changes: Dirty oil increases engine friction, which reduces efficiency over time.

Avoiding these mistakes can help you get closer to the EPA estimates and save money on fuel over the life of your vehicle. Small changes in routine can lead to big improvements in your overall fuel costs.

Final Thoughts on the 2024 Grand Highlander Gas Mileage

The 2024 Toyota Grand Highlander delivers strong gas mileage for a three-row SUV, especially in the hybrid configuration. With an EPA-rated 36 MPG on the highway, it stands out as one of the most fuel-efficient options in its class. The V6 model also offers respectable numbers, making it a capable choice for those who need extra power.

Real-world results may vary, but the overall picture is clear. The Grand Highlander balances family-friendly space with practical fuel economy. Whether you commute daily or take weekend road trips, this vehicle keeps fuel costs manageable without sacrificing performance.

If you are considering a purchase, we recommend test-driving both the hybrid and V6 versions. The difference in fuel economy is significant, and the hybrid experience is smooth and refined. With proper driving habits and regular maintenance, your Grand Highlander will deliver excellent mileage for years to come.

For more information on Toyota vehicles and ownership tips, check out our other articles on Toyota maintenance and fuel economy guides. We also have a detailed piece on how many gallons it takes to fill up a car if you want to better understand your fuel costs. And if you are wondering about long trips, our article on how far past empty a car can go offers helpful insights for planning your journeys.

Frequently Asked Questions

What is the city gas mileage for the 2024 Toyota Grand Highlander hybrid?

The EPA estimates the hybrid Grand Highlander at 27 MPG in the city. Real-world results from owners typically range from 24 to 28 MPG depending on driving conditions and habits.

How does the Grand Highlander hybrid compare to the regular Highlander hybrid in terms of fuel economy?

The Grand Highlander hybrid and the standard Highlander hybrid share the same powertrain and deliver very similar fuel economy numbers. The main difference is the Grand Highlander’s larger size and extra seating, which adds a small amount of weight that can slightly reduce MPG in some driving conditions.

Does the AWD system reduce the Grand Highlander’s gas mileage?

Yes, all-wheel drive reduces fuel economy slightly. The hybrid AWD version gets 29 MPG combined compared to 30 MPG combined for the FWD hybrid. The difference is modest but noticeable over long periods of ownership.

Can I improve my Grand Highlander’s gas mileage with driving habits?

Absolutely. Smooth acceleration, steady highway speeds, and anticipating stops can improve your MPG by 10 to 20 percent. These simple changes do not require any extra cost or effort.

Is the 2024 Grand Highlander V6 worth it if fuel economy is a priority?

If fuel economy is your top priority, the V6 is not the best choice. The hybrid version delivers significantly better MPG. However, if you need the extra towing capacity and prefer the feel of a V6, the trade-off in fuel costs may be worth it for your needs.

How often should I fill up my Grand Highlander to maintain good fuel economy?

It is best to keep your tank at least half full at all times. This reduces condensation in the tank and ensures you always have enough fuel for unexpected trips. Filling up when the tank reaches a quarter full is a good habit for maintaining efficiency.