2021 Ford F-150 3.5L EcoBoost Oil Specifications

Viscosity

5W-30

OEM Approval

Ford WSS-M2C961-A1

OEM Spec / API

API SP with the API Certification Mark (if Motorcraft oil is unavailable)

Capacity

6.0 quarts

Oil Filter

Motorcraft FL-500-S

Normal Interval

Intelligent Oil-Life Monitor do not exceed one year or 10,000 mi (16,000 km)

From Ford Motor Company, 2021 Ford F-150 Owner's Manual (version 2, edition date 2021-05, second printing). See the cited pages.

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Complete Oil Specifications

Ford’s owner’s manual for the 2021 F-150 with the 3.5L EcoBoost recommends Motorcraft SAE 5W-30 Synthetic Blend Motor Oil meeting Ford specification WSS-M2C961-A1. If Motorcraft oil isn’t available, use an SAE 5W-30 oil that meets API SP and shows the API Certification Mark for gasoline engines. Engine oil capacity is 6.0 qt (5.7 L) including the oil filter.

Oil Filter

Ford lists the Motorcraft FL-500-S engine oil filter for the 3.5L EcoBoost. If it isn’t available, use a filter that meets SAE/USCAR-36.

Extreme Cold

Where ambient temperatures reach -22°F (-30°C) or below, Ford allows SAE 0W-30 synthetic blend oil meeting WSS-M2C963-A1 for better cold starting.

When to Change the Oil

The F-150’s Intelligent Oil-Life Monitor shows a message when the oil needs changing. Intervals may be up to one year or 10,000 mi (16,000 km), and Ford says not to exceed one year or 10,000 mi between service intervals. Reset the oil change reminder after each oil and filter change.

What We Couldn’t Confirm

  • Capacity without the filter and drain plug torque. Neither appears in the owner’s manual.

FAQs

What oil does a 2021 F-150 3.5L EcoBoost take? SAE 5W-30 meeting Ford WSS-M2C961-A1 (Motorcraft Synthetic Blend recommended), or an API SP certified 5W-30.

How much oil does it hold? 6.0 qt (5.7 L) including the filter.

What oil filter does it use? Motorcraft FL-500-S.

How often should I change the oil? When the Intelligent Oil-Life Monitor says so, and never more than one year or 10,000 miles apart.

Vehicle Viscosity Capacity with filter
2024 3.5L EcoBoost 5W-30 6.0 quarts
2023 5.0L 5W-30 7.75 quarts
2022 3.5L EcoBoost 5W-30 6.0 quarts
2022 2.7L EcoBoost 5W-30 6.0 quarts
2021 3.5L EcoBoost (this page) 5W-30 6.0 quarts

Ford F-150 oil type and capacity by year

Same engine in other vehicles

Compare the oil type and capacity listed for every vehicle we've checked with the Ford 3.5L EcoBoost.

Oil guides for this vehicle

Primary source evidence

  1. Ford Motor Company — 2021 Ford F-150 Owner's Manual (version 2, edition date 2021-05, second printing)

    US market · Model years 2021 · Published/version 2021-05 · Pages/tables: p. 583 (Motorcraft Parts – 3.5L EcoBoost: engine oil filter FL-500-S), p. 592–593 (Engine Oil Capacity and Specification – 3.5L EcoBoost: capacity, WSS-M2C961-A1, API SP, extreme-cold alternative), p. 664 and p. 668 (Scheduled maintenance: Intelligent Oil-Life Monitor, do not exceed one year or 10,000 mi)

    View official source · Accessed September 24, 2026

Evidence reviewed September 24, 2026.

Disclaimer: These specifications reflect the official documents and applicability shown above as of their access dates. Confirm the requirement against the manual for your VIN before performing maintenance.

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