2013 Ford F150 Fuel Tank Size – Determine Your Truck’S Range
The 2013 Ford F-150 typically features either a 26-gallon or a 36-gallon fuel tank, depending on the specific cab configuration, wheelbase, and drivetrain. Identifying your exact capacity is crucial for calculating towing range, planning off-road excursions, and performing accurate fuel system maintenance.
Identifying your 2013 ford f150 fuel tank size is the first step toward mastering your truck’s logistics. Whether you are hauling a trailer across state lines or hitting a remote trail, knowing how much fuel you have on board prevents “range anxiety.” This guide will help you pin down your capacity and maintain your fuel system like a pro.
Most truck owners find themselves staring at the fuel gauge, wondering exactly how much “reserve” they have left. In the 2013 model year, Ford offered several variations that can make this confusing. We will break down these configurations so you can stop guessing at the pump.
In the following sections, we will explore the technical specs, identification methods, and common maintenance tasks. By the end of this article, you will have a clear understanding of your truck’s fuel capabilities and how to keep the engine running smoothly.
Understanding the 2013 Ford F150 Fuel Tank Size Options
Ford designed the 12th-generation F-150 to be highly customizable, and that flexibility extends to the fuel system. Depending on how your truck was ordered from the factory, you likely have one of two primary tank sizes. These sizes are strategically paired with the truck’s frame length and intended use case.
The Standard 26-Gallon Tank
The 26-gallon tank is the standard offering for most 2WD (4×2) models and trucks with shorter wheelbases. If you drive a Regular Cab or a SuperCab with a standard bed, this is likely what you have under the frame. It provides a decent balance between weight savings and driving range for daily commuting and light-duty tasks.
While 26 gallons might seem plenty, the 2013 ford f150 fuel tank size for these models can feel small when towing. With the 5.0L V8 or the 3.5L EcoBoost working hard, your range between fill-ups will drop significantly. This is why many buyers opted for the larger “Extended Range” alternative.
The Extended Range 36-Gallon Tank
The 36-gallon fuel tank is a favorite among off-roaders and long-distance towers. This “Extended Range” tank was often standard on 4×4 models, especially those equipped with the FX4 package or the EcoBoost engine. It significantly increases the distance you can travel before the low-fuel light illuminates.
Having an extra 10 gallons of capacity adds roughly 60 pounds of weight when full, but the utility is undeniable. For off-road enthusiasts, this extra capacity means you can spend more time on the trails without carrying bulky jerry cans. It is one of the most sought-after features in the used truck market today.
How to Verify Your Specific Fuel Tank Capacity
If you aren’t the original owner, you might not know which tank was installed. You can’t always rely on the fuel gauge, as the “Distance to Empty” (DTE) calculation is an estimate based on recent driving habits. Here are the most reliable ways to confirm your capacity.
Check the Original Window Sticker
The most accurate way to find your 2013 ford f150 fuel tank size is to look at the original window sticker. If you don’t have the physical copy, several online services allow you to pull a digital version using your Vehicle Identification Number (VIN). Look for the “Optional Equipment” section or the “Functional” list.
If you see “36 Gallon Fuel Tank” listed, you have the extended range version. If no specific fuel tank is mentioned, the truck likely defaulted to the standard 26-gallon unit. This document is the “birth certificate” of your truck and provides the most definitive answer.
The VIN Decoder Method
Your VIN contains a wealth of information about your truck’s build. You can use an online Ford VIN decoder to see the factory specifications. While some decoders focus on the engine and transmission, advanced tools will list the specific fuel delivery system components.
Pay close attention to the trim level and wheelbase listed in the VIN report. Generally, the 157-inch and 163-inch wheelbases (found on SuperCrew models with 6.5-foot beds or SuperCabs with 8-foot beds) almost always came with the 36-gallon tank. Shorter 126-inch or 145-inch wheelbases vary more frequently.
The “Empty to Full” Test
A practical, albeit less scientific, way to check is to wait until your fuel light comes on and then fill the tank completely. Most Ford trucks trigger the low fuel warning when there are approximately 3 to 5 gallons of reserve fuel remaining. This safety margin prevents the fuel pump from running dry.
If you pump 21 or 22 gallons and the pump clicks off, you definitely have the 26-gallon tank. If you find yourself pumping 31 or 32 gallons, you have the 36-gallon extended range tank. Always perform this test at a level gas station to ensure an accurate reading.
Why Tank Size Matters for Off-Roading and Towing
For the “EngineNeeds” community, fuel capacity isn’t just a number—it’s a performance metric. The 2013 ford f150 fuel tank size directly impacts your payload capacity and your ability to reach remote destinations. Let’s look at how this plays out in real-world scenarios.
The Weight of Fuel and Payload
Gasoline weighs approximately 6 pounds per gallon. A full 26-gallon tank adds about 156 pounds to your truck, while a full 36-gallon tank adds 216 pounds. While 60 pounds doesn’t seem like much, every pound counts when you are calculating your Maximum Payload Capacity.
If you are pushing the limits of your truck with a heavy slide-in camper or a tongue-heavy trailer, remember that fuel weight is part of your “occupants and cargo” total. Always account for a full tank of gas when visiting a scale to weigh your rig.
Planning Your Off-Road Range
Off-roading often involves low speeds, high RPMs, and 4LO engagement, all of which decimate your fuel economy. If your truck gets 18 MPG on the highway, it might get as low as 5-8 MPG on a technical trail. Knowing your 2013 ford f150 fuel tank size allows you to calculate your “Point of No Return.”
Professional overlanders suggest the “Rule of Thirds”: one-third of your fuel to get in, one-third to get out, and one-third for emergencies. With a 36-gallon tank, your safety margin is significantly wider, allowing for deeper exploration into the backcountry without the need for external fuel storage.
Essential Maintenance for the F-150 Fuel System
Regardless of your tank size, the components that move that fuel to your engine require care. The 2013 F-150 uses a returnless fuel system, which simplifies the plumbing but places a heavy burden on the fuel pump and the electronic control module.
The Fuel Pump Assembly
The fuel pump is located inside the tank. It uses the surrounding gasoline to stay cool during operation. This is why we recommend never letting your fuel level drop below a quarter tank. Running the tank near empty consistently can cause the pump to overheat and fail prematurely.
If you hear a high-pitched whining noise from the rear of the truck or experience sputtering at high speeds, your pump might be struggling. Replacing a pump on a 36-gallon tank is a heavy job, often requiring you to either drop the tank or lift the truck bed for access.
The EVAP System and Purge Valve
The Evaporative Emission (EVAP) system prevents gasoline vapors from escaping into the atmosphere. A common issue on the 2013 F-150 is a faulty canister purge valve. When this valve fails, it can cause the engine to stumble after refueling or trigger a “Check Engine” light.
Another unique feature of this era of Ford trucks is the “Capless Fuel Fill” system. While convenient, the internal flap can sometimes collect dust or debris. If the seal isn’t tight, you may see a “Check Fuel Fill Inlet” message on your dashboard. Cleaning the neck with pressurized air or a specialized funnel often solves the problem.
Fuel Filter Considerations
Unlike older trucks, the 2013 F-150 does not have a traditional, frame-mounted external fuel filter that needs periodic replacement. Instead, it uses a “lifetime” mesh strainer attached to the fuel pump inside the tank. While this reduces routine maintenance, it means that if the filter ever truly clogs, you are looking at a full pump assembly replacement.
Common Problems and Troubleshooting
Even a reliable truck like the 2013 F-150 can run into fuel-related gremlins. Understanding these issues can save you a trip to the mechanic and help you diagnose problems in your own garage.
Inaccurate Fuel Gauge Readings
If your gauge fluctuates wildly or stays on “Full” for 200 miles before dropping to “Empty,” you likely have a failing fuel sending unit. This is a float-style sensor attached to the fuel pump. Over time, the electrical contacts on the sensor can wear down or become “gummed up” by low-quality fuel.
Before replacing the whole unit, try using a high-quality fuel system cleaner that contains Polyetheramine (PEA). Sometimes, cleaning the sulfur deposits off the sending unit’s contacts can restore accuracy without needing to disassemble the tank.
Hard Starting After Refueling
As mentioned earlier, if your truck struggles to start specifically after you’ve just left the gas station, the purge valve is the prime suspect. It allows raw fuel vapors to flood the intake manifold, creating an overly “rich” condition that prevents the engine from firing up easily. This is a relatively cheap and easy DIY fix that requires only basic hand tools.
Pro Tip: When the gas pump clicks off, do not “top off” your tank. Forcing extra fuel into the filler neck can liquid-lock the EVAP charcoal canister, leading to expensive repairs. Stop at the first click to protect your emissions system.
Upgrading Your Fuel Capacity
If you find that the standard 2013 ford f150 fuel tank size isn’t meeting your needs, there are ways to increase your range. This is a popular modification for those who use their trucks for heavy towing or long-distance overland travel.
Aftermarket Replacement Tanks
Companies like Transfer Flow or Titan Fuel Tanks offer heavy-duty, mid-ship replacement tanks. These are often made of high-density cross-linked polyethylene or aluminized steel. Some aftermarket tanks can increase your capacity to 45 gallons or more, fitting into the same space as the factory tank.
Installing an aftermarket tank is a significant project. You will need to recalibrate your truck’s computer so the “Distance to Empty” and fuel gauge remain accurate. This usually requires a diagnostic tool like FORScan to update the tank size parameters in the Body Control Module (BCM).
Bed-Mounted Transfer Tanks
For those who need maximum range, a bed-mounted transfer tank is an option. These sit behind the cab and can hold an additional 30 to 50 gallons. Most are designed for diesel, but gasoline-compatible versions are available. They typically use an electric pump to transfer fuel into the main tank while you are parked or driving.
Keep in mind that a bed-mounted tank takes up valuable cargo space. If you are an off-roader, this also raises your center of gravity. For most users, upgrading the mid-ship tank is a cleaner and more balanced solution.
Frequently Asked Questions About 2013 Ford F150 Fuel Tank Size
Can I swap a 26-gallon tank for a 36-gallon tank?
Yes, it is a common swap. However, you will need the larger tank, the corresponding fuel pump (the 36-gallon pump has a longer reach), and the correct mounting straps. You must also update the truck’s software using FORScan so the gauge reads correctly.
Does the engine type affect the fuel tank size?
While any engine could technically be paired with either tank, the 3.5L EcoBoost and 6.2L V8 models were much more likely to come from the factory with the 36-gallon extended range tank due to their higher fuel consumption under load.
How far can I drive when the low fuel light comes on?
In most 2013 F-150s, the light comes on when you have roughly 35-50 miles of range left. However, this is an estimate. Depending on your load and terrain, you may have as little as 2 gallons of usable fuel left. It is best to find a station immediately.
Why does my 36-gallon tank only take 30 gallons when empty?
Ford builds in a significant “reserve” to protect the fuel pump. Even when the gauge says “0 Miles to Empty,” there are usually 3 to 4 gallons left in the bottom of the tank. This prevents the pump from sucking in air or debris.
Is there a difference between 2WD and 4WD tank sizes?
Standard 2WD trucks often came with the 26-gallon tank to maximize payload and fuel economy ratings. 4WD trucks, especially those with off-road packages, frequently featured the 36-gallon tank as standard equipment.
Final Thoughts for the DIY Mechanic
Knowing your 2013 ford f150 fuel tank size is more than just a trivia point—it’s about knowing the limits of your machine. Whether you have the nimble 26-gallon setup or the long-haul 36-gallon monster, proper maintenance is the key to longevity. Keep that fuel system clean, don’t run the tank to bone-dry, and listen for those early warning signs of pump wear.
If you’re planning a big upgrade or just doing a weekend filter check, always prioritize safety. Fuel vapors are highly flammable, so work in a well-ventilated area and keep a fire extinguisher nearby. With the right knowledge and a bit of grease on your hands, your F-150 will keep hauling for years to come.
Stay safe on the roads, keep your eyes on the gauge, and enjoy the freedom that comes with a well-maintained truck. Happy driving!
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