Oil
- Viscosity
- 0W-20
- Oil type
- Full Synthetic
- Capacity (with filter)
- 13 qt
- Capacity (without filter)
- 12.7 qt
OEM notes: WSS-M2C962-A1
2021 Ford F-350 Maintenance & Specs
Everything you need to maintain your 2021 Ford F-350 — oil specs, maintenance schedule, recalls, and more.
The 2021 Ford F-350 takes 0W-20 Full Synthetic with a total capacity of 13 quarts (filter included). The OEM oil filter is the Motorcraft FL-820S, with 4 compatible alternatives listed below. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
Data last verified: May 4, 2026
Oil
0W-20
Full Synthetic
Buy on Amazon →
Capacity
13 qt
with filter
Filter
FL-820S
Motorcraft (OEM)
Buy on Amazon →
OEM spec: WSS-M2C962-A1
Quick DIY Tips for the 2021 Ford F-350
- Using the OEM filter (Motorcraft FL-820S) is recommended for warranty compliance.
- Always use 0W-20 Full Synthetic as specified by Ford — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
Filter options
Drain bolt & hardware
Drain bolt specs not yet added.
Fluid specifications
Transmission Fluid
Buy →- Type
- Mercon LV
- Capacity
- 5.5 qt
- Change interval
- 50,000 mi
Brake Fluid
Buy →- DOT type
- DOT 3
- Change interval
- 45,000 mi
Coolant
Buy →- Type
- Motorcraft Gold
- Color
- Yellow
- Capacity
- 8.5 qt
- Change interval
- 120,000 mi
Power Steering Fluid
Buy →- Type
- Mercon LV
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2.5 qt
- Change interval
- 60,000 mi
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2.5 qt
- Change interval
- 60,000 mi
Parts & specifications
Spark Plugs
- Type
- Iridium
- Gap
- 0.052
- Quantity
- 4
- Change interval
- 100,000 mi
Battery
- Group size
- 65
- CCA
- 750
Tires
- Size
- 265/70R17
- Front pressure
- 35 PSI
- Rear pressure
- 35 PSI
Air Filter
Cabin Air Filter
Brake Pads
Wiper Blades
Maintenance schedule
Select a mileage interval above to see scheduled maintenance items.
Towing & Payload
Max Towing Capacity
24,200 lbs
Max Payload
7,640 lbs
Curb Weight
6,800 lbs
GVWR
14,000 lbs
Max Tongue Weight
2,420 lbs
Hitch Class
V
Super Duty
Source: manufacturer
Estimated Current Value
Original MSRP
$65,000
Private Party Value
$41,372 – $45,727
Dealer Retail Value
$47,905 – $54,437
Trade-In Value
$37,017 – $41,372
Depreciation
33%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Technical Service Bulletins5
Torque specifications
- lug nut
- 120 ft-lbs / 162.7 Nm
- spark plug
- 18 ft-lbs / 24.4 Nm
14mm thread, aluminum head
Save by doing it yourself
A shop typically charges $70–$160 for this service. Buy the parts yourself and save.
Shop Parts for the Ford F-350
Find oil, filters, and maintenance parts for the 2021 Ford F-350 on Amazon.
Tools & supplies
Step-by-step guide
Detailed walkthrough with tips for first-timers.
Read guide →How often to change oil
Intervals, severe service, and what your car needs.
Read guide →Synthetic vs. conventional
Which oil type is right for your engine and budget.
Read guide →Have info for this vehicle?
Help fellow owners — submit specs from your owner's manual.
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