The Ford F-Series F-250 X SuperCab, equipped with the 5.4-liter V8 Bi-Fuel Triton engine and automatic transmission, was a workhorse pickup truck produced for a limited run between 1998 and 1999. This variant occupied a middle ground within the F-250 lineup, offering a balance between capability and affordability. It was part of the ninth generation of the F-Series (1992-1997 for F-150 and 1997-1999 for F-250/F-350), known for its substantial redesign and increased focus on interior comfort. The bi-fuel capability, allowing operation on both gasoline and liquefied petroleum gas (LPG), was a key differentiator, appealing to fleet and commercial buyers seeking fuel cost savings.
Technical Specifications
| Brand | Ford |
| Model | F-Series F-250 |
| Generation | F-Series F-250 X SuperCab |
| Type (Engine) | 5.4 V8 Bi-Fuel Triton (235 Hp) Automatic |
| Start of production | 1998 |
| End of production | 1999 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5-6 |
| Doors | 2 |
| Fuel Type | Petrol / LPG |
| Power | 235 Hp @ 4250 rpm |
| Power per litre | 43.5 Hp/l |
| Torque | 447 Nm @ 3000 rpm / 329.69 lb.-ft. @ 3000 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Triton |
| Engine displacement | 5408 cm3 / 330.02 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Compression ratio | 9:1 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 5.7 l / 6.02 US qt | 5.02 UK qt |
| Coolant | 16.9 l / 17.86 US qt | 14.87 UK qt |
| Max. weight | 3402 kg / 7500.13 lbs |
| Trunk (boot) space – minimum | 1659 l / 58.59 cu. ft |
| Fuel tank capacity | 95 l / 25.1 US gal | 20.9 UK gal |
| Fuel tank capacity (LPG) | 101 l |
| Permitted trailer load with brakes (12%) | 3901 kg / 8600.23 lbs |
| Length | 5608-5646 mm / 220.79 – 222.28 in |
| Width | 1656 mm / 65.2 in |
| Wheelbase | 3531 mm / 139.02 in |
| Ride height (ground clearance) | 183 mm / 7.2 in |
| Wading depth | 848 mm / 33.39 in |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Independent coil spring, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Power steering | Electric Steering |
| Tires size | 245/75 R16 |
| Wheel rims size | 7.0J x 16 |
Powertrain & Engine Architecture
The heart of this F-250 variant was the 5.4-liter Triton V8 engine. Introduced in 1996, the Triton family represented a significant upgrade over Ford’s previous V8 offerings. This particular engine, designated as the 5.4L, featured a cast-iron block with aluminum cylinder heads. It utilized a sequential electronic fuel injection (SEFI) system, delivering precise fuel metering for improved efficiency and performance. The engine’s 9:1 compression ratio was a compromise between power and durability, suitable for both gasoline and LPG operation. The bi-fuel system incorporated a dedicated LPG tank and regulator, allowing the driver to switch between fuels as needed. The 4R70W four-speed automatic transmission was the standard pairing for this engine. This transmission was known for its robustness and relatively smooth shifting, although it lacked the overdrive gear found in some later transmissions.
Driving Characteristics
The 235 horsepower and 330 lb-ft of torque provided by the 5.4L Triton were adequate for most typical F-250 duties, such as hauling moderate loads and towing trailers. However, compared to the available 7.3-liter Power Stroke diesel or even the larger gasoline V8 options, the 5.4L felt somewhat underpowered, especially when heavily loaded. The automatic transmission’s gear ratios were optimized for towing and hauling, resulting in a relatively conservative feel during everyday driving. Acceleration was not brisk, and passing maneuvers required careful planning. The bi-fuel capability did impact performance slightly when running on LPG, as LPG typically has a lower energy density than gasoline. However, the cost savings associated with LPG often outweighed this performance difference for fleet operators.
Equipment & Trim Levels
The F-250 X SuperCab with the 5.4L engine typically came standard with features like air conditioning, a basic AM/FM radio, and cloth upholstery. The SuperCab configuration offered extended rear seating, providing more passenger space than the standard cab. Optional extras included power windows and locks, a CD player, upgraded sound systems, and various towing packages. The “X” trim level represented a mid-range offering, positioned above the base XL trim but below the more luxurious XLT. Interior appointments were functional and durable, prioritizing practicality over luxury.
Chassis & Braking
The F-250 chassis was built around a robust ladder frame, designed to withstand the stresses of heavy-duty use. The front suspension featured independent coil springs and a transverse stabilizer bar, providing a reasonably comfortable ride. The rear suspension utilized leaf springs, optimized for load-carrying capacity. Braking duties were handled by ventilated discs on all four wheels, providing adequate stopping power for the truck’s weight. Power steering was standard, making maneuvering the large truck easier. The 245/75R16 tires were a common size for this generation of F-250, offering a good balance between on-road comfort and off-road traction.
Market Reception & Comparison
The 5.4L V8 Bi-Fuel F-250 received mixed reviews. Critics generally praised the engine’s reliability and the cost-saving potential of the bi-fuel system. However, many noted the engine’s lack of outright power compared to the diesel options. Fuel economy was reasonable for a truck of this size, but not exceptional. Compared to the 7.3L Power Stroke diesel, the 5.4L offered significantly lower torque and towing capacity, but also a lower initial purchase price. The 5.4L was often favored by buyers who prioritized affordability and the flexibility of running on two different fuels.
Legacy
The 5.4L Triton engine proved to be a durable and reliable powerplant, even in the demanding application of a heavy-duty truck. While not known for its blistering performance, it provided years of dependable service for many owners. Today, these F-250s can be found in the used car market at relatively affordable prices. The bi-fuel system remains a unique feature, appealing to those seeking alternative fuel options. However, potential buyers should be aware of the age of the vehicle and the potential for maintenance issues associated with older trucks. Overall, the Ford F-250 X SuperCab 5.4L V8 Bi-Fuel Triton represents a capable and practical work truck from a bygone era.
