The 2018 Toyota Tundra 1794 Edition is a standout in the full-size pickup truck market, offering a blend of rugged capability, luxurious features, and impressive towing capacity. For truck enthusiasts and everyday drivers alike, understanding the specifications of this vehicle is crucial, especially when it comes to fuel efficiency and range. One of the most frequently asked questions about the 2018 Tundra 1794 Edition is: What is the gas tank size? In this article, we’ll dive deep into the gas tank capacity of the 2018 Tundra 1794 Edition, its impact on driving range, and how it compares to other trucks in its class.

 

Overview of the 2018 Toyota Tundra 1794 Edition

Before discussing the gas tank size, let’s take a closer look at the 2018 Toyota Tundra 1794 Edition and what makes it unique. The 1794 Edition is the top-tier trim of the Tundra lineup, designed to offer a premium experience without compromising on performance. Key features include:

  • Powerful Engine Options: The 2018 Tundra 1794 Edition comes with a standard 5.7-liter V8 engine, delivering 381 horsepower and 401 lb-ft of torque.
  • Luxurious Interior: Premium leather seats, wood-grain accents, and advanced infotainment systems make the cabin a comfortable and high-tech space.
  • Towing and Payload Capacity: With a maximum towing capacity of up to 10,200 pounds and a payload capacity of 1,730 pounds, the Tundra 1794 Edition is built for heavy-duty tasks.
  • Off-Road Capability: Features like skid plates, off-road suspension, and four-wheel drive make it a capable off-roader.

Given its powerful engine and heavy-duty capabilities, fuel efficiency and gas tank size are important considerations for potential buyers.

 

Gas Tank Size of the 2018 Toyota Tundra 1794 Edition

The 2018 Toyota Tundra 1794 Edition is equipped with a 38-gallon gas tank. This large fuel capacity is one of the standout features of the Tundra, setting it apart from many competitors in the full-size pickup truck segment. Here’s why the gas tank size matters:

1. Extended Driving Range

With a 38-gallon gas tank, the 2018 Tundra 1794 Edition offers an impressive driving range, especially when combined with its fuel efficiency. The 5.7-liter V8 engine has an EPA-estimated fuel economy of:

  • 13 mpg in the city
  • 17 mpg on the highway
  • 14 mpg combined

Based on these figures, the Tundra 1794 Edition can achieve:

  • Approximately 494 miles on a full tank in the city
  • Approximately 646 miles on a full tank on the highway

This extended range is particularly beneficial for long-distance driving, towing, and off-road adventures, reducing the need for frequent refueling stops.

2. Towing and Hauling Efficiency

The large gas tank size is especially advantageous when towing or hauling heavy loads. Towing can significantly reduce fuel efficiency, but the 38-gallon tank ensures that you can cover considerable distances without interruption. For example, if towing reduces your fuel efficiency to 10 mpg, you can still travel up to 380 miles on a single tank.

3. Reduced Refueling Frequency

For drivers who use their Tundra for work or frequent travel, the 38-gallon tank means fewer trips to the gas station. This not only saves time but also enhances convenience, especially in remote areas where gas stations may be sparse.

 

Comparing the Tundra 1794 Edition to Competitors

To put the 2018 Tundra 1794 Edition’s gas tank size into perspective, let’s compare it to other popular full-size pickup trucks:

1. Ford F-150

  • Gas Tank Size: 23 to 36 gallons (depending on trim and configuration)
  • Fuel Economy: Up to 20 mpg city / 26 mpg highway (with the 3.0-liter Power Stroke diesel engine)
  • Driving Range: Approximately 460–936 miles, depending on the tank size and engine.

While the F-150 offers a range of gas tank sizes, the Tundra 1794 Edition’s 38-gallon tank provides a competitive edge in terms of range.

2. Chevrolet Silverado 1500

  • Gas Tank Size: 24 to 26 gallons (standard) or 36 gallons (optional)
  • Fuel Economy: Up to 18 mpg city / 24 mpg highway (with the 3.0-liter Duramax diesel engine)
  • Driving Range: Approximately 432–864 miles, depending on the tank size and engine.

The Tundra 1794 Edition’s larger gas tank gives it an advantage over the Silverado’s standard configurations.

3. Ram 1500

  • Gas Tank Size: 23 to 33 gallons (depending on trim and configuration)
  • Fuel Economy: Up to 20 mpg city / 25 mpg highway (with the 3.0-liter EcoDiesel V6 engine)
  • Driving Range: Approximately 460–825 miles, depending on the tank size and engine.

Again, the Tundra 1794 Edition’s 38-gallon tank offers a longer range compared to most Ram 1500 configurations.

 

Factors Affecting Fuel Efficiency and Range

While the 38-gallon gas tank provides an impressive range, several factors can influence the actual fuel efficiency and driving range of the 2018 Tundra 1794 Edition:

1. Driving Conditions

  • City Driving: Stop-and-go traffic and frequent idling can reduce fuel efficiency.
  • Highway Driving: Consistent speeds on the highway typically result in better fuel economy.
  • Off-Road Driving: Rough terrain and low-speed crawling can increase fuel consumption.

2. Towing and Payload

Towing heavy trailers or carrying large payloads can significantly reduce fuel efficiency. For example, towing a 10,000-pound trailer might lower the Tundra’s fuel economy to 8–10 mpg.

3. Driving Habits

Aggressive driving, such as rapid acceleration and hard braking, can decrease fuel efficiency. Maintaining a steady speed and avoiding excessive idling can help maximize range.

4. Weather Conditions

Extreme temperatures, strong winds, and inclement weather can impact fuel efficiency. Cold weather, in particular, can reduce engine efficiency and increase fuel consumption.

 

Tips for Maximizing Fuel Efficiency

To get the most out of the 2018 Tundra 1794 Edition’s 38-gallon gas tank, consider the following tips:

1. Regular Maintenance

  • Keep Tires Inflated: Properly inflated tires reduce rolling resistance and improve fuel efficiency.
  • Change Air Filters: A clean air filter ensures optimal engine performance.
  • Use the Recommended Oil: Using the manufacturer-recommended oil can improve engine efficiency.

2. Plan Your Trips

  • Combine Errands: Reducing the number of short trips can improve overall fuel efficiency.
  • Avoid Traffic: Plan your routes to avoid heavy traffic and reduce idling time.

3. Drive Efficiently

  • Smooth Acceleration: Gradual acceleration is more fuel-efficient than rapid starts.
  • Use Cruise Control: Maintaining a constant speed on the highway can improve fuel economy.

4. Reduce Weight

  • Remove Unnecessary Items: Extra weight in the truck bed or cabin can reduce fuel efficiency.
  • Avoid Overloading: Stay within the Tundra’s payload capacity to maintain optimal performance.

 

Real-World Driving Experiences with the 2018 Tundra 1794 Edition

To better understand how the 38-gallon gas tank performs in real-world scenarios, let’s look at some experiences shared by Tundra 1794 Edition owners:

1. Long-Distance Travel

Many owners praise the Tundra 1794 Edition for its ability to handle long-distance trips without frequent refueling stops. For example:

  • Cross-Country Road Trips: Owners report driving from coast to coast with only a few refueling stops, thanks to the large gas tank and decent highway fuel economy.
  • Towing Across States: When towing trailers or boats, the Tundra’s extended range is a significant advantage, reducing the need to plan routes around gas stations.

2. Off-Road Adventures

The Tundra 1794 Edition is a popular choice for off-road enthusiasts, and its 38-gallon gas tank is a key factor in its appeal. Off-roading often takes drivers to remote areas where gas stations are scarce, and the large fuel capacity ensures that they can explore without worrying about running out of fuel.

3. Daily Commuting

For daily commuters, the Tundra’s gas tank size means fewer trips to the gas station, even with moderate fuel efficiency. Owners appreciate the convenience of not having to refuel as often, especially during busy workweeks.

 

Comparing Gas Tank Sizes Across Tundra Trims

While the 2018 Tundra 1794 Edition comes with a 38-gallon gas tank, it’s worth noting that other Tundra trims may have different fuel capacities. Here’s a quick comparison:

1. Tundra SR and SR5 Trims

  • Gas Tank Size: 26.4 gallons (standard) or 38 gallons (optional)
  • Fuel Economy: Similar to the 1794 Edition, with slight variations depending on drivetrain and configuration.

2. Tundra Limited and Platinum Trims

  • Gas Tank Size: 38 gallons (standard)
  • Fuel Economy: Comparable to the 1794 Edition, with minor differences based on features and weight.

The 38-gallon tank is more commonly found in higher trims like the 1794 Edition, Limited, and Platinum, while the smaller 26.4-gallon tank is standard in base trims like the SR and SR5.

 

Cost of Filling the 38-Gallon Gas Tank

While the large gas tank offers extended range, it also means higher fuel costs when filling up. Here’s a breakdown of the cost to fill the 38-gallon tank based on average gas prices:

1. National Average Gas Prices

As of recent data, the average price of regular unleaded gasoline in the United States is approximately $3.50 per gallon.

  • Cost to Fill the Tank: 38 gallons x 
  • 3.50=∗∗
  • 3.50=∗∗133**

2. Regional Variations

Gas prices can vary significantly depending on location. For example:

  • California: Average gas price of $4.50 per gallon
    • Cost to Fill the Tank: 38 x 
    • 4.50=∗∗
    • 4.50=∗∗171**
  • Texas: Average gas price of $3.00 per gallon
    • Cost to Fill the Tank: 38 x 
    • 3.00=∗∗
    • 3.00=∗∗114**

3. Impact on Budget

For frequent drivers or those who use their Tundra for work, the cost of filling the 38-gallon tank can add up quickly. However, the extended range and reduced refueling frequency can offset some of these costs by saving time and improving convenience.

 

Fuel Efficiency Improvements Over the Years

The 2018 Tundra 1794 Edition’s fuel efficiency is comparable to previous model years, but it’s worth noting how Toyota has addressed fuel economy in newer Tundra models. While the 2018 Tundra relies on a traditional V8 engine, newer models may incorporate hybrid or turbocharged engines to improve efficiency without sacrificing power.

1. Hybrid Tundra Models

Toyota has introduced hybrid versions of the Tundra in recent years, offering improved fuel economy and reduced emissions. These models combine the V8 engine with an electric motor, providing:

  • Better Fuel Efficiency: Hybrid models can achieve up to 20 mpg combined, compared to the 2018 Tundra’s 14 mpg.
  • Reduced Fuel Costs: Lower fuel consumption translates to savings at the pump.

2. Turbocharged Engines

Some newer Tundra models feature turbocharged engines, which deliver more power while maintaining or improving fuel efficiency. These engines are designed to provide:

  • Enhanced Performance: Increased horsepower and torque for towing and hauling.
  • Improved Efficiency: Better fuel economy compared to traditional V8 engines.

 

Customization Options for the 2018 Tundra 1794 Edition

For owners who want to maximize their Tundra’s fuel efficiency or range, there are several aftermarket modifications and accessories available:

1. Aerodynamic Upgrades

  • Tonneau Covers: Installing a tonneau cover on the truck bed can reduce drag and improve fuel efficiency.
  • Wind Deflectors: Adding wind deflectors to the roof or hood can streamline airflow and reduce resistance.

2. Performance Tuning

  • Engine Tuners: Aftermarket engine tuners can optimize fuel delivery and improve efficiency.
  • Exhaust Systems: Upgrading to a high-performance exhaust system can enhance engine efficiency and reduce fuel consumption.

3. Fuel Additives

  • Octane Boosters: Using fuel additives or higher-octane gasoline can improve engine performance and efficiency.
  • Fuel System Cleaners: Regular use of fuel system cleaners can maintain optimal engine performance and fuel economy.

 

Environmental Impact of the 38-Gallon Gas Tank

While the 2018 Tundra 1794 Edition’s large gas tank offers practical benefits, it’s also important to consider its environmental impact:

1. Fuel Consumption

The Tundra’s V8 engine and large gas tank result in higher fuel consumption compared to smaller, more fuel-efficient vehicles. This contributes to increased greenhouse gas emissions and a larger carbon footprint.

2. Eco-Friendly Alternatives

For environmentally conscious drivers, Toyota offers hybrid and electric vehicles that provide similar capabilities with reduced emissions. While the Tundra 1794 Edition is not available as a hybrid, future models may incorporate more eco-friendly technologies.

3. Offsetting Emissions

Owners can take steps to offset their vehicle’s environmental impact, such as:

  • Carbon Offsets: Purchasing carbon offsets to balance out emissions.
  • Eco-Driving Practices: Adopting fuel-efficient driving habits to reduce consumption.

 

Conclusion 

The 2018 Toyota Tundra 1794 Edition’s 38-gallon gas tank is a standout feature that offers extended driving range, reduced refueling frequency, and enhanced convenience for long-distance travel, towing, and off-road adventures. While its fuel efficiency may not match that of smaller or hybrid vehicles, the large gas tank ensures that the Tundra remains a reliable and capable choice for truck enthusiasts. By understanding the factors that affect fuel efficiency and adopting best practices, owners can maximize the benefits of the 38-gallon tank while minimizing its environmental impact.

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