2017 Ford F 150 Fuel Tank Size – Capacity Options For Towing And Range
Understanding your truck’s fuel capacity is essential for calculating your maximum range and planning fuel stops during heavy towing. The 2017 Ford F-150 primarily offers two capacities: a standard 23-gallon tank and an optional 36-gallon extended-range version.
Do you ever find yourself staring at the fuel gauge, wondering if you can make it to the next town while hauling a heavy trailer? You are not alone, as range anxiety is a common concern for truck owners who push their vehicles to the limit. Identifying your 2017 ford f 150 fuel tank size is the first step toward mastering your vehicle’s logistics and ensuring you never get stranded.
I will guide you through the different tank options available for this model year and show you exactly how to verify which one sits under your frame. We will also explore how these capacities impact your driving experience, especially when you are off the beaten path or towing a massive load. By the end of this guide, you will have the expert knowledge needed to manage your fuel stops like a pro.
Whether you are a weekend warrior or a dedicated DIY mechanic, knowing these specs helps you maintain your fuel system and plan for future upgrades. Let’s dive into the specifics of these fuel systems and see how they vary across the different trims and configurations of the 2017 lineup.
The Standard and Extended 2017 ford f 150 fuel tank size Options
The 2017 model year was a standout for the F-150, offering a variety of configurations that directly influenced the fuel system. Most standard builds, particularly those with the 2.7L EcoBoost or the base 3.5L V6, came equipped with a 23-gallon fuel tank. This size is generally sufficient for daily commuting and light-duty tasks where weight savings are prioritized.
However, Ford recognized that many owners use these trucks for long-distance travel and heavy-duty work. To accommodate this, they offered a massive 36-gallon extended-range tank as an optional upgrade on almost every trim level. This larger tank is a favorite among the off-roading community because it provides the “legs” needed for deep-woods exploration where gas stations are non-existent.
In some rare fleet configurations or specific Regular Cab models, you might encounter a 26-gallon tank, though this is significantly less common than the two primary options. If you have the Raptor variant, the SuperCrew models almost exclusively feature the 36-gallon tank to support the high fuel consumption of the 3.5L High-Output EcoBoost engine. Knowing which one you have allows you to calculate your theoretical range with high precision.
Why Tank Size Varies by Cab and Bed Length
The physical space available under the truck frame dictates which tank Ford can install at the factory. Short-bed trucks have less “real estate” between the frame rails, which sometimes limits the placement of larger components. However, Ford’s engineers designed the 36-gallon tank to fit within the wheelbase of most SuperCab and SuperCrew configurations.
If you own a Regular Cab with a very short wheelbase, you are more likely to have the standard 23-gallon unit. The 36-gallon tank is quite long, stretching further down the frame rail toward the rear axle. This design ensures the center of gravity remains stable even when the tank is completely full of heavy liquid fuel.
When you are shopping for a used 2017 F-150, always check the original equipment list for the “Extended Range Fuel Tank” option. This single feature can add over 200 miles of highway range to your trip. It is one of the most sought-after factory options for anyone planning to build an “overlanding” rig or a dedicated tow vehicle.
How to Identify Your Specific 2017 ford f 150 fuel tank size
If you are not the original owner, you might be unsure which tank is currently installed in your truck. The easiest way to verify your 2017 ford f 150 fuel tank size is to look at your instrument cluster’s “Distance to Empty” (DTE) reading after a full fill-up. If the DTE shows 500 to 600 miles or more, you almost certainly have the 36-gallon tank.
Another foolproof method is to use a VIN decoder or request a build sheet from a Ford dealership. By providing your Vehicle Identification Number, the dealer can print out the exact specifications your truck had when it rolled off the assembly line. This is much more accurate than trying to measure the tank physically while it is mounted under the chassis.
You can also check the original window sticker if you still have it, looking for the “36 Gallon Fuel Tank” line item under the options section. If you are at the gas station and your low-fuel light just came on, take note of how many gallons it takes to click the pump off. If you pump in 28 gallons, you definitely have the 36-gallon version, as the 23-gallon tank physically cannot hold that much.
Using the Instrument Cluster Settings
The productivity screen in your 2017 F-150 contains a wealth of information regarding your fuel economy. Navigate to the “Trip/Fuel” menu and look at your average MPG (miles per gallon). Multiply your average MPG by 23 and then by 36 to see which number aligns with your typical range between fill-ups.
Be aware that Ford leaves a “reserve” of fuel in the tank even when the gauge reads empty. Usually, this reserve is about 2 to 3 gallons, designed to keep the fuel pump submerged and cool. If you fill up right when the light turns on and it only takes 20 gallons, you have the standard 23-gallon tank.
For DIY mechanics, looking at the tank’s part number sticker can provide the final answer. You will need a flashlight and perhaps a creeper to slide under the driver-side mid-section of the truck. The tank is a large black plastic (HDPE) container, and the manufacturer’s label will often list the nominal capacity in liters or gallons.
The Impact of Fuel Capacity on Towing and Payload
While a larger tank is great for range, it does have a minor impact on your available payload capacity. Fuel weighs approximately 6 pounds per gallon, meaning a full 36-gallon tank adds about 216 pounds to your truck. In contrast, the 23-gallon tank only adds about 138 pounds when topped off.
This difference of 78 pounds might seem small, but for those pushing their payload limits with a heavy tongue weight, every pound counts. If you are hauling a heavy camper and several passengers, you must factor in the weight of that extra fuel. Most owners, however, find the trade-off for increased range to be well worth the small reduction in payload.
Towing significantly reduces your MPG, often cutting it in half depending on the aerodynamic drag of your trailer. With the 23-gallon tank, a truck getting 9 MPG while towing only has a total range of 207 miles. This can lead to frequent, stressful stops at gas stations that are often difficult to navigate with a large trailer attached.
Planning Your Off-Road Adventures
For off-roaders, the 36-gallon tank is a game-changer for “expedition-style” travel. When you are crawling through technical trails in low-range 4WD, your fuel economy drops drastically. Having that extra 13 gallons of “insurance” allows you to stay out on the trail longer without carrying dangerous jerry cans on your roof rack.
I always recommend that off-roaders fill up at the last possible station before hitting the dirt. Even with the large tank, idling for long periods or winching can consume more fuel than you expect. If you find yourself in a situation where fuel is low, try to maintain a steady speed and avoid aggressive throttle inputs to maximize your remaining burn time.
Always remember the “Rule of Thirds” when traveling in remote areas: use one-third of your fuel to get in, one-third to get back out, and keep one-third in reserve for emergencies. With the 36-gallon tank, your “emergency third” is a generous 12 gallons, providing a massive safety margin that the smaller tank simply cannot match.
Maintenance Tips for Your Ford F-150 Fuel System
Regardless of your tank size, maintaining the health of your fuel system is vital for the longevity of your 2017 F-150. Modern EcoBoost engines use Direct Injection, which is highly sensitive to fuel quality and contaminants. Always use high-quality fuel from reputable stations to prevent carbon buildup on your intake valves.
One of the most important tips I can give you is to avoid running your tank down to “fumes” consistently. The fuel pump is located inside the tank and relies on the surrounding gasoline to dissipate heat. If the fuel level is constantly low, the pump can overheat, leading to premature failure and an expensive repair bill.
Check your fuel filler neck (the “Capless Fuel Fill” system) for debris regularly. Since there is no traditional screw-on cap, dirt and moisture can sometimes accumulate around the spring-loaded flap. Use a clean cloth to wipe the area, ensuring that no grit enters the tank the next time you insert the fuel nozzle.
Dealing with Fuel System Issues
If you notice a sudden drop in fuel economy or a lingering smell of gasoline, inspect the tank for leaks immediately. While the plastic tanks are incredibly durable and rust-proof, they can still be punctured by sharp road debris or off-road obstacles. If you do a lot of trail riding, consider installing a skid plate to protect the fuel tank from “rock rash.”
If your truck struggles to start after a fill-up, you might have a faulty Purge Valve. This is a common and relatively inexpensive DIY fix for the 2017 model year. The valve is part of the EVAP system, which manages fuel vapors, and a failure here can cause the engine to stumble or throw a “Check Engine” light.
For those living in climates with extreme temperature swings, keep your tank as full as possible during the winter. This minimizes the amount of air in the tank, which reduces the chance of water condensation forming on the inner walls. Water in the fuel line can freeze and block the flow, leaving you stranded on a cold morning.
Upgrading Your Fuel Capacity: Is It Possible?
If you currently have the 23-gallon tank and find it lacking, you might wonder if you can swap it for the 36-gallon version. The short answer is yes, but it is a significant undertaking. You will need the larger tank itself, the corresponding fuel sending unit, and potentially different mounting straps.
Beyond the physical parts, you must also recalibrate the truck’s computer. The DTE (Distance to Empty) calculation is hard-coded for the original tank size. You will need a tool like FORScan and an OBDII adapter to update the “Tank Size” parameter in the Body Control Module (BCM) so your fuel gauge reads correctly.
Many owners find it more cost-effective to use aftermarket solutions if they need even more capacity. Companies like Transfer Flow offer replacement tanks or “in-bed” auxiliary tanks that can double your total fuel capacity. These are especially popular for hot-shot drivers or those who live in very rural areas with limited infrastructure.
Safety First During Fuel System Work
If you decide to perform a tank swap or fuel pump replacement yourself, prioritize safety above all else. Gasoline vapors are highly flammable and heavier than air, meaning they will settle in low spots like garage pits. Always work in a well-ventilated area and keep a fire extinguisher rated for Class B fires nearby.
Never use a standard shop light that could shatter and spark; use explosion-proof LED work lights instead. It is also best to perform any fuel system work when the tank is nearly empty to reduce the weight you have to manage. A full 36-gallon tank is nearly impossible to maneuver safely without professional transmission jacks or specialized lifting equipment.
If you are uncomfortable working with fuel systems, do not hesitate to take your truck to a certified technician. A mistake during a fuel tank installation can lead to leaks or even fires. Professional shops have the tools to properly “leak test” the system after the work is completed, giving you peace of mind on the road.
Frequently Asked Questions About 2017 ford f 150 fuel tank size
Can I put a 36-gallon tank in a 2017 F-150 that came with a 23-gallon tank?
Yes, it is a common modification. You will need the tank, the correct fuel pump/sending unit for the 36-gallon model, and you must update the truck’s software using FORScan to ensure the fuel gauge and DTE readings remain accurate.
How many miles can a 2017 F-150 go on a full tank?
This depends on the engine and tank size. A 3.5L EcoBoost with a 36-gallon tank can often see over 700 miles of highway range. Conversely, a 5.0L V8 with a 23-gallon tank might only get around 350 to 400 miles depending on driving habits.
Is the 36-gallon tank standard on the 2017 Ford F-150 Raptor?
On the SuperCrew Raptor, the 36-gallon tank was standard. However, on the smaller SuperCab Raptor models, the 26-gallon tank was the standard fitment due to the shorter wheelbase and frame constraints.
Does the 2017 F-150 have a fuel drain plug?
No, modern F-150 fuel tanks do not have a drain plug. If you need to empty the tank for maintenance or to remove “bad gas,” you must either use a siphon through the filler neck (which is difficult due to anti-siphon valves) or drop the tank and pour it out.
What is the “reserve” fuel amount on the 2017 F-150?
Ford typically designs the fuel system to have a reserve of approximately 10% of the total capacity. For the 36-gallon tank, you likely have about 3.5 gallons left when the DTE hits zero, though you should never rely on this reserve as it can damage the fuel pump.
Final Thoughts on Your Truck’s Fuel Capacity
Knowing your 2017 ford f 150 fuel tank size is more than just a trivia point; it is a vital part of being a responsible and prepared truck owner. Whether you are navigating the daily commute or hauling a trailer across state lines, understanding your range allows you to drive with confidence. The 36-gallon tank remains one of the best features for this model year, offering a level of freedom that few other light-duty trucks can match.
Take the time to verify your capacity today using the VIN or the fill-up method. Once you know your limits, you can better maintain your fuel system and ensure your Ford stays on the road for years to come. Remember to keep that fuel pump cool by avoiding the “E” mark, and always prioritize high-quality fuel to keep your engine running at peak performance.
Stay safe on the trails, keep your eyes on the gauge, and enjoy the incredible capability of your F-150. Happy driving!
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