2019 Ford F-150 Fluid Type & Capacity Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil (Gas)	5W-30 Synthetic Blend (WSS-M2C946-B1) / 5W-20 (WSS-M2C945-B1)	6.0–8.8 quarts
Engine Oil (Diesel)	5W-30 Diesel Oil (WSS-M2C214-B1, API FA-4)	6.4 quarts
Engine Coolant	Motorcraft Yellow Antifreeze/Coolant (WSS-M97B57-A2)	12.1–15.7 quarts
Transmission Fluid	Mercon ULV (WSS-M2C949-A)	~13 quarts
Transfer Case Fluid	Mercon LV	1.5 quarts
Front Differential	80W-90 Gear Oil (WSP-M2C197-A)	1.8 quarts
Rear Differential	75W-85 Gear Oil (WSS-M2C945-A) / 75W-140 (Heavy Duty)	2.75–4.5 quarts
Brake Fluid	DOT 4 LV High Performance (WSS-M6C65-A2)	As needed
Power Steering	N/A (Electric Power Steering)	N/A
Washer Fluid	Any quality washer fluid	~1 gallon
Diesel Exhaust Fluid	API Certified, ISO 22241	5.3 gallons

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This complete fluid specification guide for the 2019 Ford F-150 covers every essential fluid your truck needs to operate reliably. Using the correct fluid type and capacity is critical for longevity and performance. Always verify specs in your owner's manual, especially as capacities can vary based on engine, drivetrain, and equipment.

Engine Oil

Choosing the right engine oil is the single most important maintenance item for your F-150. The correct specification depends entirely on the engine your truck is equipped with.

• 2.7L EcoBoost, 3.5L EcoBoost, 5.0L V8 (after 4/23/2018): These engines require a 5W-30 Synthetic Blend or full synthetic oil meeting Ford's WSS-M2C946-B1 specification. This is a critical spec that includes timing chain wear protection for the EcoBoost engines. The API service rating should be SN PLUS or newer.
• 3.3L Duratec V6: This engine is specified with 5W-20 Synthetic Blend oil meeting Ford's WSS-M2C945-B1 spec.
• 3.0L Power Stroke Diesel: The diesel F-150 requires a specific 5W-30 diesel oil meeting Ford's WSS-M2C214-B1 specification and API Service FA-4. Do not use CK-4 or older API ratings, as FA-4 is a lower viscosity oil designed for modern diesels.

Capacities:

• 2.7L EcoBoost: 6.0 quarts
• 3.5L EcoBoost: 6.0 quarts
• 5.0L V8: 8.8 quarts
• 3.3L V6: 6.3 quarts
• 3.0L Diesel: 6.4 quarts

Note: A common pitfall is using a non-specified 5W-30 in an EcoBoost engine. Oils meeting the WSS-M2C946-B1 spec have specific additives to combat low-speed pre-ignition (LSPI) and protect the timing components. Always check the bottle for the Ford specification number.

Engine Coolant

The 2019 F-150 left the factory with Motorcraft Yellow Antifreeze/Coolant. This is an Organic Acid Technology (OAT) coolant meeting Ford specification WSS-M97B57-A2. Previously, Ford used Motorcraft Orange (WSS-M97B44-D), and while the two are compatible, the new Yellow coolant is recommended for service.

Pitfall: Never mix conventional green or blue (IAT/HOAT) coolants with the factory-fill OAT coolant. Mixing chemistries can cause the coolant to gel, leading to blockages in the radiator, heater core, and engine passages, which can cause severe overheating and damage. Use only a new, compatible OAT coolant for top-offs and flushes.

Capacity: The cooling system capacity ranges from 12.1 to 15.7 quarts, depending on the engine and equipment. A 50/50 mix with distilled water is required.

Transmission Fluid

Nearly all 2019 F-150s are equipped with the 10-speed (10R80) automatic transmission. This transmission requires a very specific fluid: Mercon ULV (Ultra-Low Viscosity), which meets specification WSS-M2C949-A.

CRITICAL NOTE: Do NOT use Mercon LV, Mercon V, or any other type of "universal" ATF. Mercon ULV is not the same and has a much lower viscosity. Using the wrong fluid will lead to poor shifting, premature wear, and eventual transmission failure.

Capacity: A full fluid exchange requires approximately 13 quarts.

Transfer Case Fluid

For 4WD models, the transfer case requires Mercon LV Automatic Transmission Fluid, meeting Ford spec WSS-M2C938-A. This is a different fluid than the one used in the 10-speed transmission.

Capacity: The transfer case holds approximately 1.5 quarts.

Differential Fluid

Front Differential (4WD models): The front axle requires 80W-90 gear oil meeting Ford specification WSP-M2C197-A. The capacity is 1.8 quarts.

Rear Differential: Fluid type depends on the axle.

• Most F-150s use a synthetic 75W-85 gear oil meeting Ford's WSS-M2C945-A specification.
• Trucks with the Heavy-Duty Payload Package or certain performance packages may require a heavier 75W-140 synthetic gear oil.
• If your truck is equipped with a limited-slip differential (LSD), you must add 4 ounces of Friction Modifier XL-3 (EST-M2C118-A) to prevent clutch chatter.

Capacity: Rear differential capacity ranges from 2.75 to 4.5 quarts, depending on the specific axle.

Brake Fluid

The 2019 F-150 requires DOT 4 LV High Performance Motor Vehicle Brake Fluid, meeting specification WSS-M6C65-A2. The "LV" (Low Viscosity) is critical for the proper operation of the ABS and stability control systems. Using a standard DOT 4 or DOT 3 fluid can lead to a sluggish pedal response, especially in cold weather.

Pitfall: Never use DOT 5 (silicone-based) fluid, as it is incompatible with the system's seals.

Power Steering Fluid

The 2019 Ford F-150 uses an Electric Power-Assisted Steering (EPAS) system. There is no hydraulic power steering pump or fluid reservoir. No service or fluid is required.

Windshield Washer Fluid

Use any quality, name-brand windshield washer fluid. For colder climates, be sure to use a fluid with a low freezing point (e.g., -20°F or lower) to prevent freeze-up of the lines and nozzles.

Diesel Exhaust Fluid (DEF)

For F-150s equipped with the 3.0L Power Stroke diesel engine, Diesel Exhaust Fluid (DEF) is required. The DEF must be API certified to meet the ISO 22241 standard. This is standard for all modern DEF. The DEF tank holds approximately 5.3 gallons.

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