2014 Ford F-250 Super Duty Fluid Type Specs

Quick reference

Fluid	Type/Spec	Capacity (approximate)
Engine Oil	SAE 5W-30 (6.2L Gas), SAE 10W-30 (6.7L Diesel)	7.0 quarts (6.2L), 13.0 quarts (6.7L)
Engine Coolant	Motorcraft Orange Antifreeze/Coolant (Ford WSS-M97B44-D)	19.3 quarts (6.2L), 28.0 quarts (6.7L)
Transmission Fluid	MERCON LV automatic transmission fluid	17.5 quarts (TorqShift 6R140)
Transfer Case	MERCON LV automatic transmission fluid	2.0 quarts
Front Differential	Motorcraft SAE 80W-90 High-Performance Rear Axle Lubricant (Dana M279) / Motorcraft SAE 75W-140 High Performance Rear Axle Lubricant (Dana M300)	2.9-3.0 quarts (Dana M279/M300)
Rear Differential	Motorcraft SAE 75W-140 High-Performance Rear Axle Lubricant with friction modifier (Sterling 10.5, Dana M275/M300)	3.5-4.0 quarts (Sterling 10.5), 3.75-4.5 quarts (Dana M275/M300)
Brake Fluid	Motorcraft DOT 3 or DOT 4 Low Viscosity Brake Fluid	As needed
Power Steering	MERCON V Automatic Transmission Fluid	As needed
Washer Fluid	Motorcraft Premium Windshield Washer Concentrate	As needed
DEF	Motorcraft Diesel Exhaust Fluid (ISO 22241-1)	5.0 gallons

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Engine Oil

6.2L V8 Gasoline Engine: For the 6.2L V8 gasoline engine, Ford specifies SAE 5W-30 motor oil. It is crucial to use an oil that meets Ford WSS-M2C946-B1 or API SN PLUS / SP standards. The capacity is approximately 7.0 quarts with a filter change.

6.7L Power Stroke V8 Diesel Engine: The 6.7L Power Stroke diesel engine requires SAE 10W-30 low-ash diesel engine oil that meets Ford WSS-M2C171-F1 and API CK-4 standards. The capacity for this engine is a substantial 13.0 quarts with a filter change.

Intervals and Pitfalls: Ford recommends an engine oil and filter change every 7,500 to 10,000 miles for gasoline engines under normal driving conditions, or every 5,000 miles/six months under severe conditions. For the Power Stroke diesel, the interval is typically 10,000 miles or 200 operating hours, whichever comes first, under normal conditions. Always verify the exact interval in your owner's manual. Using the incorrect oil type or viscosity can lead to increased engine wear and potentially void your warranty. Always ensure the oil meets the specified Ford WSS (Worldwide Service Specification) number and API classification.

Engine Coolant

Both the 6.2L gasoline and 6.7L Power Stroke diesel engines in the 2014 F-250 Super Duty utilize Motorcraft Orange Antifreeze/Coolant, which is an Organic Acid Technology (OAT) coolant. This coolant meets Ford WSS-M97B44-D specification. The approximate capacity is 19.3 quarts for the 6.2L gasoline engine and 28.0 quarts for the 6.7L Power Stroke diesel engine.

Intervals and Pitfalls: The initial coolant fill is designed for a very long service life, often up to 10 years or 200,000 miles. However, it's essential to check the coolant level and condition regularly. Never mix different types of coolants (e.g., OAT with HOAT or IAT). Mixing incompatible coolants can lead to premature wear of cooling system components, gel formation, and severe engine damage. Always use distilled water when mixing concentrate, as tap water contains minerals that can harm the cooling system.

Transmission Fluid

The 2014 Ford F-250 Super Duty, equipped with the TorqShift 6R140 automatic transmission, requires MERCON LV automatic transmission fluid. The approximate fill capacity for a complete overhaul is around 17.5 quarts, though a simple drain and refill will use considerably less. Always consult your owner's manual for the specific procedure and check the fluid level accurately.

Intervals and Pitfalls: Ford generally recommends inspecting the transmission fluid level and condition every 30,000 miles. Under normal driving conditions, the fluid is often considered "lifetime" by Ford, but many technicians recommend a fluid and filter change between 60,000 and 100,000 miles for optimal longevity, particularly if towing or hauling frequently. Never use a universal ATF or any fluid not explicitly labeled MERCON LV. Using the wrong fluid can cause severe transmission damage, leading to costly repairs. MERCON LV is a low-viscosity, friction-modified fluid critical for the proper operation of the TorqShift transmission.

Transfer Case

For 4WD F-250 Super Duty models, the transfer case also uses MERCON LV automatic transmission fluid. The approximate capacity is 2.0 quarts.

Intervals and Pitfalls: Ford typically recommends inspecting the transfer case fluid every 30,000 miles. For vehicles that regularly engage 4WD, tow, or are used off-road, a fluid change every 60,000 to 100,000 miles is a good preventative measure. As with the transmission, using only MERCON LV is paramount to prevent damage to the transfer case's internal components.

Front Differential

The 2014 F-250 Super Duty may come with different front axle options. For Dana M279 axles, the recommended fluid is Motorcraft SAE 80W-90 High-Performance Rear Axle Lubricant. For Dana M300 axles, the recommended fluid is Motorcraft SAE 75W-140 High Performance Rear Axle Lubricant. Capacities range from approximately 2.9 to 3.0 quarts depending on the axle.

Intervals and Pitfalls: Ford recommends inspecting the differential fluid every 30,000 miles and changing it every 60,000 to 100,000 miles, especially if operating under severe conditions (towing, heavy loads, off-road). Ensure the correct weight is used. Some differentials, particularly those with a limited-slip differential (LSD), may require a friction modifier additive. However, many modern gear oils are already friction-modified. Always verify if an additional friction modifier is needed for your specific differential by checking your owner's manual.

Rear Differential

Rear axle options for the 2014 F-250 Super Duty generally include the Sterling 10.5 inch, Dana M275, or Dana M300. The specified fluid for these rear differentials is Motorcraft SAE 75W-140 High-Performance Rear Axle Lubricant. Ford specifies that these fluids already contain the necessary friction modifier for limited-slip differentials, so an additional additive is typically not required. Capacities vary from approximately 3.5 to 4.0 quarts for the Sterling 10.5 and 3.75 to 4.5 quarts for the Dana M275/M300.

Intervals and Pitfalls: Similar to the front differential, inspect the fluid every 30,000 miles and change every 60,000 to 100,000 miles, especially under heavy use. Using a fluid without the proper friction modification in a limited-slip differential can lead to chatter or binding during turns. Always confirm the needs of your specific rear axle in the owner's manual.

Brake Fluid

The 2014 F-250 Super Duty uses either Motorcraft DOT 3 or DOT 4 Low Viscosity Brake Fluid. Both are glycol-ether based fluids. DOT 4 has a higher boiling point than DOT 3, offering more resistance to brake fade under heavy use.

Intervals and Pitfalls: Brake fluid is hygroscopic, meaning it absorbs moisture over time, which lowers its boiling point and can lead to corrosion in the brake system. Ford recommends inspecting the brake fluid level and condition periodically. A brake fluid flush is generally recommended every two to three years, regardless of mileage, to maintain optimal braking performance and prevent expensive repairs to brake components. Never use DOT 5 (silicone-based) brake fluid, as it is incompatible with systems designed for DOT 3 or DOT 4 and will cause seal damage.

Power Steering Fluid

The power steering system in the 2014 F-250 Super Duty requires MERCON V Automatic Transmission Fluid. This is a common practice for many Ford heavy-duty trucks.

Intervals and Pitfalls: There isn't a universally specified service interval for power steering fluid, but it's a good idea to check the fluid level and condition periodically. If the fluid appears dark, has a burnt smell, or if the power steering system is noisy, a flush and refill may be beneficial. Using anything other than MERCON V can damage the power steering pump and other components.

Washer Fluid

The F-250 Super Duty utilizes standard windshield washer fluid, such as Motorcraft Premium Windshield Washer Concentrate. Pre-mixed washer fluid or a concentrate diluted with water is acceptable.

Intervals and Pitfalls: Keep the reservoir topped off, especially in winter months. Use a washer fluid with de-icing properties in cold climates to prevent freezing. During warmer months, a bug-removing formula can be beneficial. Avoid using plain water, as it can freeze and crack the reservoir or lines in cold weather and doesn't offer the cleaning power of dedicated washer fluid.

Diesel Exhaust Fluid (DEF)

For the 6.7L Power Stroke diesel engine, Diesel Exhaust Fluid (DEF) is essential for the Selective Catalytic Reduction (SCR) system. The DEF must meet ISO 22241-1 standards. The DEF tank capacity is approximately 5.0 gallons.

Intervals and Pitfalls: The DEF consumption rate varies based on driving conditions, but the truck's onboard computer will alert you when the DEF level is low. It's crucial to use only high-quality DEF that meets the ISO spec. Never use anything but DEF in the DEF tank. Contaminating the DEF system with other fluids can cause severe damage to the SCR system, leading to costly repairs and potential derating of engine power. Store DEF according to manufacturer recommendations, as it can degrade over time and in extreme temperatures.

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