🧪Fluid Capacities

Ford Flex Fluid Capacities

Factory manual fluid capacities for the Ford Flex. Exact capacities and specs extracted from the LEMON service manual archive.

Last updated: 2026-10-28 • Reading time: 8 min • By AllOEMManuals Editorial Team

Quick Answer

2019 Ford Flex: 8.96 OZS. (0.26 L) — PAG 46

GenerationYearsTop spec
201920198.96 OZS. (0.26 L) — PAG 46
2015-20182015-20189.50 OZS. (0.28 L) — PAG 46

This vehicle's factory manual

The spec is above. This opens the 2019 Ford Flex factory book. Use another year if yours is older.

Open the 2019 Ford manual
2015 book

Ford Flex maintenance schedule

Factory Manual ConfirmationFluid Capacities

Know the exact fluid capacities job for your Ford Flex

2019 Ford Flex: 8.96 OZS. (0.26 L) — PAG 46

Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.

Exact Vehicle Check

The button opens the factory book for this vehicle. Use the engine picker only when your trim is not the one this page already matched.

Open the 2019 factory manualDifferent engine or trim
Open the factory manual above to confirm the exact engine before ordering parts.

2019

2019Open 2019 manual
Air Cond Compressor Oil8.96 OZS. (0.26 L) — PAG 46
Air Cond Refrigerant2.31 LBS. (1.04 KG) — R-134a Note: The air conditioning refrigerant system contains refrigerant R-134a under high pressure. Opening the air conditioning refrigerant system can cause personal injury.
Automatic Transmission Fluid (Trans Mfr CD 6F50)10.90 QTS. (10.31 L) — MOTORCRAFT Automatic Transmission Fluid MERCON LV Note: Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
Brake Fluid— MOTORCRAFT DOT 4 Low Viscosity (LV) High Performance Brake Fluid, or equivalent. Note: Ford recommends using Motorcraft (Ford) DOT 4 LV High Performance Motor Vehicle Brake Fluid or equivalent meeting WSS-M6C65-A2. Fill between "max" and "min" lines on reservoir.
Differential Gear Oil (AWD)2.43 PTS. (1.14 L) — MOTORCRAFT SAE 80W-90 Premium Rear Axle Lubricant
Engine Coolant13.20 QTS. (12.49 L) — MOTORCRAFT Orange Antifreeze/Coolant Prediluted Note: Add the coolant type originally equipped in the vehicle. Indicates only approximate dry fill capacity. Some applications may vary.
Engine Oil6.00 QTS. (5.67 L) — MOTORCRAFT SAE 5W-20 Premium Synthetic Blend Motor Oil or Optional: MOTORCRAFT SAE 5W-20 Full Synthetic Motor Oil
Fuel Tank18.60 GALS. (70.4 L)
Transfer Case Fluid18.00 OZS. (0.53 L) — MOTORCRAFT SAE 75W-140 Synthetic Rear Axle Lubricant
Windshield Washer Fluid— MOTORCRAFT Premium Windshield Washer Concentrate Fluid Note: Follow the Manufacturer's Instructions for the mixture ratio.
Automatic Transmission Fluid (Trans Mfr CD 6F55)11.60 QTS. (10.97 L) — MOTORCRAFT Automatic Transmission Fluid MERCON LV Note: Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
Notes
  • →The air conditioning refrigerant system contains refrigerant R-134a under high pressure. Opening the air conditioning refrigerant system can cause personal injury.
  • →Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
  • →Ford recommends using Motorcraft (Ford) DOT 4 LV High Performance Motor Vehicle Brake Fluid or equivalent meeting WSS-M6C65-A2. Fill between "max" and "min" lines on reservoir.
  • →Add the coolant type originally equipped in the vehicle. Indicates only approximate dry fill capacity. Some applications may vary.
  • →Follow the Manufacturer's Instructions for the mixture ratio.
Shop Exact Match on Amazon →Full Repair Guide →

2015-2018

2015-2018Open 2015 manual
Air Cond Compressor Oil9.50 OZS. (0.28 L) — PAG 46
Air Cond Refrigerant (3.5L Eng)2.31 LBS. (1.04 KG) — R-134a Note: The air conditioning refrigerant system contains refrigerant R-134a under high pressure. Opening the air conditioning refrigerant system can cause personal injury.
Automatic Transmission Fluid (Trans Mfr CD 6F50)10.90 QTS. (10.31 L) — MOTORCRAFT Automatic Transmission Fluid MERCON LV Note: Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
Brake Fluid— MOTORCRAFT DOT 4 Low Viscosity (LV) High Performance Brake Fluid, or equivalent. Note: Ford recommends using Motorcraft (Ford) DOT 4 LV High Performance Motor Vehicle Brake Fluid or equivalent meeting WSS-M6C65-A2. Fill between "max" and "min" lines on reservoir.
Differential Gear Oil (AWD)2.43 PTS. (1.14 L) — MOTORCRAFT SAE 80W-90 Premium Rear Axle Lubricant
Engine Coolant (3.5L Eng)13.20 QTS. (12.49 L) — MOTORCRAFT Orange Antifreeze/Coolant Prediluted Note: Add the coolant type originally equipped in the vehicle. Indicates only approximate dry fill capacity. Some applications may vary.
Engine Oil (3.5L Eng)6.00 QTS. (5.67 L) — MOTORCRAFT SAE 5W-20 Premium Synthetic Blend Motor Oil or Optional: MOTORCRAFT SAE 5W-20 Full Synthetic Motor Oil
Fuel Tank18.60 GALS. (70.4 L)
Transfer Case Fluid18.00 OZS. (0.53 L) — MOTORCRAFT SAE 75W-140 Synthetic Rear Axle Lubricant
Windshield Washer Fluid— MOTORCRAFT Premium Windshield Washer Concentrate Fluid Note: Follow the Manufacturer's Instructions for the mixture ratio.
Automatic Transmission Fluid (Trans Mfr CD 6F55)11.60 QTS. (10.97 L) — MOTORCRAFT Automatic Transmission Fluid MERCON LV Note: Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
Notes
  • →The air conditioning refrigerant system contains refrigerant R-134a under high pressure. Opening the air conditioning refrigerant system can cause personal injury.
  • →Approximate dry fill capacity. Actual amount may vary during fluid changes. Automatic Transmission that require MERCON LV should only use MERCON LV ATF.
  • →Ford recommends using Motorcraft (Ford) DOT 4 LV High Performance Motor Vehicle Brake Fluid or equivalent meeting WSS-M6C65-A2. Fill between "max" and "min" lines on reservoir.
  • →Add the coolant type originally equipped in the vehicle. Indicates only approximate dry fill capacity. Some applications may vary.
  • →Follow the Manufacturer's Instructions for the mixture ratio.
Shop Exact Match on Amazon →Full Repair Guide →

Manual already checked Amazon for you

You came here for the exact spec. Now here is the exact part — plus the two things people always forget and have to run back to the store for.

The Exact Part
Verified Fit

Ford Flex Fluid Service Kit

Buy all the fluids your Ford Flex needs in one cart.

Shop Exact Match on AmazonPartsGeek OEM Price →
The 2 things people always forget

Long-Neck Funnel

Transmission and differential fill holes are recessed. A short funnel makes a mess.

Confirm fit on AmazonGet Item

Fluid Extraction Pump

Removing old brake fluid from the reservoir without a pump contaminates the master cylinder.

Confirm fit on AmazonGet Item

We earn a small commission if you buy through these links — at zero extra cost to you. We only suggest items that match the factory specs on this page.

Fluids — Manual's Parts List

Everything for a full fluid service weekend.

Vehicle-Scoped Amazon Search

Opens Amazon with Ford Flex prefilled so you can confirm fitment and avoid wrong parts.

Shop Exact Match on Amazon

Get everything at once

One search shows all of the above on a single page.

See All on Amazon

Links go to Amazon via our affiliate store (aiautorepair-20). We earn a small commission at no extra cost to you — it keeps the site running and the data free.

One-Trip Shopping List

Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.

💉
Shop →

Fluid Extraction Pump

Cleanly remove old fluids from reservoirs.

🧹
Shop →

Clean Shop Rags

Lint-free rags for cleaning dipsticks and spills.

🌪️
Shop →

Multi-Purpose Funnel

Long-neck funnel for hard-to-reach fill points.

🧤
Shop →

Nitrile Gloves

Keep hands clean during multi-fluid maintenance.

🧰
View All →

Project Essentials

Basic tool sets, gloves, and cleaning supplies for your Ford Flex so the job is ready when the parts arrive.

Frequently Asked Questions

Where is this data from?
Extracted directly from the LEMON factory service manual archive. Sources are cited per generation.
What fluid capacities does a Ford Flex use?
2019 Ford Flex: 8.96 OZS. (0.26 L) — PAG 46
Why do fluid capacities vary by generation for the Ford Flex?
Different engine options, transmission types, and cooling system designs across model years change total fluid volumes. Always use the capacity listed for your exact year and engine code — do not guess across generations.

Get the Complete Maintenance Schedule for Ford Flex

Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.

Not sure you want to DIY? Compare local shop pricing first.

Compare Shop EstimatesDiagnose Another Issue

Author & Review

Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.

Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.

Last updated: 2026-10-28

Need a full step-by-step repair guide?

Start Free AI Diagnosis →

100% Free — No signup required