Ford Super Duty 7.3 Gas MPG: Everything You Need to Know

The Ford Super Duty 7.3 Gas is a powerful and reliable engine that has been a popular choice among truck owners for many years. One of the key factors that drivers consider when choosing a vehicle is its fuel efficiency, or miles per gallon (MPG).

In this ultimate guide, we will delve into the details of the Ford Super Duty 7.3 Gas MPG, including its history, technical specifications, and factors that affect its fuel efficiency.

Ford Super Duty 7.3 Gas MPG in Real-world Conditions

When comparing the Ford Super Duty 7.3 Gas MPG to its competitors in the heavy-duty truck market, there are several factors to consider. Here are a few important things to remember:

• The 2021 Ford Super Duty 7.3 Gas MPG has an EPA-estimated fuel economy of 12 mpg city and 17 mpg highway, which is competitive with other gas-powered heavy-duty trucks in its class.
• However, when compared to diesel-powered heavy-duty trucks, the Super Duty 7.3 Gas MPG falls short in terms of fuel efficiency. For example, the 2021 Ram 2500 with a 6.7-liter Cummins diesel engine has an EPA-estimated fuel economy of 18 mpg city and 23 mpg highway.
• The Super Duty 7.3 Gas MPG has a towing capacity of up to 21,000 pounds and a maximum payload capacity of up to 7,850 pounds, which is comparable to other heavy-duty trucks in its class.
• When it comes to overall performance, the Super Duty 7.3 Gas MPG is praised for its power and torque, but some critics note that it can be noisy and lacks the refinement of diesel engines.

Here is a table summarizing the fuel economy of the Super Duty 7.3 Gas MPG compared to some of its competitors:

Model	Fuel Economy (City/Highway)
2021 Ford Super Duty 7.3 Gas MPG	12/17 mpg
2021 Ram 2500 (6.4L Hemi Gas)	15/22 mpg
2021 Chevrolet Silverado 2500 (6.6L Gas)	17/22 mpg
2021 GMC Sierra 2500 (6.6L Gas)	17/22 mpg
2021 Ford Super Duty 6.7 Diesel	17/23 mpg
2021 Ram 2500 (6.7L Cummins Diesel)	18/23 mpg
2021 Chevrolet Silverado 2500 (6.6L Duramax Diesel)	20/26 mpg
2021 GMC Sierra 2500 (6.6L Duramax Diesel)	20/26 mpg

Keep in mind that these numbers are just estimates and may vary based on driving conditions, load, and other factors.

When choosing a heavy-duty truck, it’s important to consider your specific needs and priorities in terms of fuel efficiency, towing and hauling capacity, and overall performance.

History of Ford Super Duty MPG

Ford’s Super Duty lineup has seen various changes over the years, including improvements in fuel economy as stricter fuel economy standards were implemented. Here is a brief history of the Ford Super Duty MPG:

• 1999-2004: The first generation of the Super Duty had a range of engines, but the best MPG was offered by the 7.3L diesel engine, which achieved 17 MPG on the highway.
• 2005-2007: The second generation saw the introduction of a new 6.0L diesel engine, which improved fuel efficiency to 18 MPG on the highway.
• 2008-2010: The third generation introduced a new 6.4L diesel engine that offered an even better fuel economy of 20 MPG on the highway.
• 2011-2016: The fourth generation featured a new 6.7L diesel engine that improved the Super Duty’s MPG to 24 on the highway.
• 2017-present: The latest generation of the Super Duty has a variety of engines, including a 6.2L gas engine that achieves 16 MPG in the city and 21 MPG on the highway, and a 6.7L diesel engine that achieves 20 MPG in the city and 27 MPG on the road.

Stricter fuel economy standards have had a significant impact on the Super Duty’s MPG over the years. As these standards have become more stringent, Ford has had to continually improve the efficiency of its engines.

In response, the company has invested heavily in new technologies and materials to reduce weight and improve aerodynamics, resulting in more fuel-efficient vehicles that meet these standards.

Factors Affecting Ford Super Duty 7.3 Gas MPG

• Weight: Carrying excess weight decreases fuel efficiency, so it’s best to remove unnecessary items and avoid overloading.
• Aerodynamics: The design of the vehicle plays a role in fuel economy, so adding aftermarket accessories that increase drag can decrease MPG.
• Tire Pressure: Properly inflated tires reduce resistance and improve fuel efficiency.
• Driving Style: Aggressive driving habits like hard braking and rapid acceleration can decrease fuel efficiency.
• Load: Carrying a heavy load in your vehicle also decreases fuel efficiency.
• Road Conditions: Rough terrain and uphill driving can negatively impact fuel economy.
• Fuel Quality: Poor fuel quality and lower octane ratings can lower fuel efficiency.

By paying attention to these factors, drivers can optimize their driving habits and increase their vehicle’s MPG.

Ford Super Duty 7.3 Gas Engine Overview

Here is an overview of the 7.3-liter V8 engine, including its design, technology, and how it compares to other engine types in the Super Duty lineup.

Design and Technology

The 7.3-liter V8 engine is a naturally aspirated engine that is built on a cast-iron block with aluminum heads. It features a pushrod design, two valves per cylinder, and a single overhead camshaft.

The engine has a bore of 4.22 inches and a stroke of 3.98 inches, with a compression ratio of 10.5:1. Here are some of the key features of the engine:

• Fuel injection: The engine uses a port fuel injection system that delivers fuel to each cylinder through individual fuel injectors.
• Intake system: The engine has a high-flow intake system that helps to optimize airflow and increase performance.
• Exhaust system: The engine has a high-capacity exhaust system that is designed to reduce backpressure and improve exhaust flow.
• Oil system: The engine features a high-capacity oil pump and an oil cooler that helps to maintain optimal oil temperature and pressure.

Comparison with Other Engine Types

The Super Duty lineup offers a range of engine types, including a 6.2-liter V8 engine and a 6.7-liter Power Stroke diesel engine.

Here is a comparison of the 7.3-liter gas engine with these other engine types:

Engine Type	Horsepower	Torque	Fuel Economy
7.3-liter Gas Engine	430 hp	475 lb-ft	12-14 mpg
6.2-liter V8 Engine	385 hp	430 lb-ft	12-14 mpg
6.7-liter Power Stroke Diesel Engine	475 hp	1050 lb-ft	16-18 mpg

How to Improving Ford Super Duty 7.3 Gas MPG

Here are some tips and tricks, aftermarket modifications and upgrades, and maintenance best practices to improve fuel economy on a Ford Super Duty 7.3 Gas:

Check Details: How To Get The Best MPG From Your Ford 7.3 Gas Engine

Tips and tricks for improving fuel economy:

• Drive smoothly and avoid rapid acceleration or hard braking
• Keep tires inflated to the recommended pressure
• Reduce excess weight and cargo
• Avoid idling the engine for extended periods
• Use cruise control on highways
• Plan your routes to avoid traffic and unnecessary stops
• Use the recommended grade of motor oil

Aftermarket modifications and upgrades:

• Upgrade to a high-flow air intake system
• Install a performance exhaust system
• Add a fuel system upgrade, such as a high-pressure fuel pump or injectors
• Use a performance tuner to adjust the engine’s parameters

Maintenance best practices:

• Change air and fuel filters regularly
• Check and replace spark plugs as needed
• Keep the engine tuned up and properly maintained
• Ensure the tire alignment is correct
• Use quality gasoline and additives to clean the fuel system

Ford Super Duty 7.3 Gas MPG vs Diesel

	Ford Super Duty 7.3 Gas	Ford Super Duty Diesel
Fuel Economy	12 MPG city/ 16 MPG highway	18 MPG city/ 24 MPG highway
Pros	Less expensive upfront, lower maintenance costs, easier to find fuel	Higher towing capacity, more torque, better fuel efficiency
Cons	Lower towing capacity, less torque, lower fuel efficiency	More expensive upfront, higher maintenance costs, may require diesel exhaust fluid (DEF)
Factors to consider	Towing and hauling needs, frequency and distance of driving, fuel availability and pricing in your area, maintenance costs and requirements, upfront cost and budget	Towing and hauling needs, frequency and distance of driving, fuel availability and pricing in your area, maintenance costs and requirements, upfront cost and budget

Frequently Asked Questions

1. Is the Ford Super Duty 7.3 Gas engine more fuel-efficient than the diesel engine?

No, the diesel engine is generally more fuel-efficient than the gas engine. However, the gas engine may be a better choice for those who don’t need to tow heavy loads on a regular basis.

2. What is the towing capacity of the Ford Super Duty 7.3 Gas engine?

The towing capacity of the Ford Super Duty 7.3 Gas engine varies depending on the configuration, but it can tow up to 21,000 pounds.

3. How does the Ford Super Duty 7.3 Gas engine compare to its competitors in terms of fuel efficiency?

In terms of fuel efficiency, the Ford Super Duty 7.3 Gas engine is competitive with other gas engines in the heavy-duty truck segment. However, it is not as fuel-efficient as diesel engines, which are typically the most efficient option for towing and hauling.

4. Can I improve my Ford Super Duty 7.3 Gas MPG by using aftermarket parts?

While aftermarket parts may offer some improvement in fuel efficiency, it’s important to use caution when modifying your vehicle. Installing parts that haven’t been approved by Ford can void your warranty and may even cause damage to your engine or transmission.

5. How often should I change the oil in my Ford Super Duty 7.3 Gas engine?

To maintain optimal performance, change the oil in your Super Duty 7.3 Gas engine every 7,500 miles or 6 months, per Ford’s recommendation. However, if you frequently tow heavy loads or drive in extreme conditions, you may need to change the oil more frequently.