How many gallons does a F250 diesel hold?

Most Ford F-250 Super Duty pickups equipped with the 6.7-liter Power Stroke turbo-diesel have a 34-gallon fuel tank. An optional Extended Range Fuel Tank can increase capacity to 48 gallons on select configurations.

Fuel capacity by configuration

Fuel capacity varies by cab style, bed length and whether the extended-range option is selected. Here is how the numbers typically break down for recent F-250 diesels:

• 34 gallons (128 liters) standard capacity on most regular configurations with the 6.7L Power Stroke diesel.


• 48 gallons (181 liters) extended-range fuel tank option available on select trims and bed/cab combinations, for longer range between fill-ups.

Because specifications can change with model year and market, confirm the exact tank size for your specific truck using the window sticker or Ford's official spec sheets.

Practical implications

Knowing the fuel capacity helps with planning for towing, long highway trips, and work-site logistics. The extended-range option is designed for drivers who prioritize fewer fuel stops, especially when carrying heavy loads or towing at high efficiency targets. Always verify the exact configuration on your vehicle, as the capacity can vary by year and market.

Summary

In brief, the Ford F-250 diesel commonly holds 34 gallons, with an extended 48-gallon option available on certain configurations. Check your vehicle’s specifications to confirm the precise capacity for your model year and build.

How many gallons of diesel does a 2013 F250 hold?

The 2013 F-250 diesel fuel tank size is 35 gallons for the standard cab/short bed model, with the common upgrade being a 60-gallon tank from manufacturers like TITAN Fuel Tanks for Crew Cab Short Bed models, or a 65-gallon tank for Crew Cab Long Bed models. Other configurations may have a different stock size; for instance, some gas models show a 29-gallon tank size for a 6.7L diesel, while another source indicates 36 gallons for the standard size. 

• Standard F-250 6.7L diesel: The stock tank size is generally 35 gallons. 
• Crew Cab, Short Bed: An aftermarket upgrade is a 60-gallon tank. 
• Crew Cab, Long Bed: An aftermarket upgrade is a 65-gallon tank. 
• Other configurations: There are conflicting reports, with one source mentioning a 29-gallon tank for a 6.7L diesel, and another citing 36 gallons as a standard size, while noting that 48-gallon tanks are specific to long-bed crew cabs, according to a Ford PDF. 

How many gallons does a Ford F250 diesel hold?

A Ford F-250 diesel can hold either a 29, 34, or 48-gallon fuel tank, depending on the truck's configuration, such as the cab and bed length. For example, a 48-gallon tank is standard on a long-bed Super Duty crew cab, while other configurations may have a 29 or 34-gallon tank.
 

• 29-gallon tank: Often found in regular-cab long-bed models with a diesel engine.
• 34-gallon tank: Common in many F-250 Super Duty configurations, including some crew cabs.
• 48-gallon tank: Typically equipped on the longest models, such as a crew cab with an 8-foot bed.

How many miles per gallon does a 6.7 L f250 diesel get?

A Ford F-250 with the 6.7L diesel engine typically gets 18-20 mpg on the highway and 15-18 mpg in mixed city/highway driving when unloaded. Fuel economy drops significantly when towing, with estimates ranging from 8.9 to 12-15 mpg depending on the load. Real-world mileage is affected by driving style, speed, terrain, and other factors. 
Unloaded driving

• Highway: Expect around 18-20 mpg on the highway under optimal conditions. Some drivers report getting as high as 24 mpg on highways, particularly with the high-output (HO) engine and gentle driving. 
• Mixed/City: You can expect a combined average of 15-18 mpg. 
• Factors: Driving speed has a significant impact. Driving at 80 mph can reduce fuel economy compared to driving at 60-65 mph, where you might see higher mileage. 

This video shows a real-world fuel economy test of a Ford F-250 diesel truck: 40sSkinner’s DOSEYouTube · Nov 11, 2025
Towing

• Towing MPG: When towing, fuel economy can drop to 12-15 mpg. 
• Heavier loads: With very heavy loads (e.g., a 17,000 lb 5th wheel), mileage can drop to under 9 mpg. 

This video demonstrates a fuel economy test of a Ford F-250 diesel while towing a trailer: 59sTFLnowYouTube · Apr 9, 2025
Other considerations

• High-output (HO) engine: The high-output version of the 6.7L engine offers more power with little to no difference in fuel consumption compared to the standard engine under normal conditions. 
• Engine break-in: New engines may have lower fuel economy until they are broken in. 
• DPF delete: Aftermarket modifications like a DPF delete may increase MPG, but this is not recommended for street use. 

How many gallons does a 6.7 powerstroke take?

A 6.7 Powerstroke's fuel tank capacity varies, but it can be around 29 to 48 gallons for standard models or larger like 60 gallons for crew cab/short bed configurations. The engine also uses a separate 5 to 7.5-gallon tank for Diesel Exhaust Fluid (DEF), which is critical for emissions and must be refilled separately. 
Fuel tank capacity

• Standard tanks: Typically range from 29 to 48 gallons, depending on the truck's configuration like the wheelbase and bed length. 
• Aftermarket and larger options: Some trucks can be fitted with replacement tanks that offer capacities of 60 gallons or more. 

Diesel Exhaust Fluid (DEF) tank

• Standard capacity: The separate DEF tank is usually about 5 gallons, with some models using a larger 7.5-gallon tank.
• Importance: The DEF system is essential for reducing emissions. If the DEF tank runs out, it can trigger a "limp mode" or prevent the engine from starting. 

Oil capacity

• Engine oil: The 6.7 Powerstroke engine takes approximately 15 quarts (14.2 gallons) of oil.