What is the differential fluid of the 2026 Ford Super Duty?

Q: What is the differential fluid of the 2026 Ford Super Duty?

Front Axle 9.25, four-wheel drive without limited slip: 2.20 qt (2.08 L) qt (front differential); Front Axle 9.25, four-wheel drive with limited slip: 2.20 qt (2.08 L) qt (front differential); Front Axle 10.08, all: 2.75 qt (2.6 L) qt (front differential); Rear Axle 10.8, open differential: 3.68 qt (3.48 L) qt (rear differential); Rear Axle 10.8, limited slip differential: 3.46 qt (3.271 L) qt (rear differential); Rear Axle 11.6, 4.30 final drive ratio: 4.44–4.54 qt (4.2–4.3 L) qt (rear differential); Rear Axle 11.6, other final drive ratios (3.31/3.55/3.73): 4.33–4.44 qt (4.1–4.2 L) qt (rear differential); Rear Axle 11.8 Light Duty and Heavy Duty, open differential: 4.21 qt (3.98 L) qt (rear differential); Rear Axle 11.8 Light Duty and Heavy Duty, limited slip: 3.95 qt (3.741 L) qt (rear differential); Rear Axle 11.8 Single Rear Wheel, electric locking differential: 4.05 qt (3.83 L) qt (rear differential); Rear Axle 12.4, limited slip: 4.65 qt (4.399 L) qt (rear differential). Source: 2026 Ford Super Duty Owner's Manual.

2026 Ford Super Duty Differential fluid

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Depends on your version. Choose yours, or compare them here.

Rear Axle 10.8, open differential 3.68 qt (3.48 L) qt rear differential
Rear Axle 10.8, limited slip differential 3.46 qt (3.271 L) qt rear differential
Rear Axle 11.6, 4.30 final drive ratio 4.44–4.54 qt (4.2–4.3 L) qt rear differential
Rear Axle 11.6, other final drive ratios (3.31/3.55/3.73) 4.33–4.44 qt (4.1–4.2 L) qt rear differential
Rear Axle 11.8 Light Duty and Heavy Duty, open differential 4.21 qt (3.98 L) qt rear differential
Rear Axle 11.8 Light Duty and Heavy Duty, limited slip 3.95 qt (3.741 L) qt rear differential
Rear Axle 11.8 Single Rear Wheel, electric locking differential 4.05 qt (3.83 L) qt rear differential
Rear Axle 12.4, limited slip 4.65 qt (4.399 L) qt rear differential
Front Axle 9.25, four-wheel drive without limited slip 2.20 qt (2.08 L) qt front differential
Front Axle 9.25, four-wheel drive with limited slip 2.20 qt (2.08 L) qt front differential
Front Axle 10.08, all 2.75 qt (2.6 L) qt front differential

2026 Ford Super Duty Owner's Manual, PDF pages 253, 254, 255 and 250

3.68 qt (3.48 L)Open the manual at this page ↗Added Oct 18, 2026 · Updated Oct 19, 2026

See where it's printed

Differential fluid (rear differential) · Rear Axle 10.8, open differential · PDF page 253
3.68 qt (3.48 L)

Differential fluid (rear differential) · Rear Axle 10.8, limited slip differential · PDF page 253
3.46 qt (3.271 L)

Differential fluid (rear differential) · Rear Axle 11.6, 4.30 final drive ratio · PDF page 253
4.44–4.54 qt (4.2–4.3 L)

Differential fluid (rear differential) · Rear Axle 11.6, other final drive ratios (3.31/3.55/3.73) · PDF page 253
4.33–4.44 qt (4.1–4.2 L)

Differential fluid (rear differential) · Rear Axle 11.8 Light Duty and Heavy Duty, open differential · PDF page 254
4.21 qt (3.98 L)

Differential fluid (rear differential) · Rear Axle 11.8 Light Duty and Heavy Duty, limited slip · PDF page 254
3.95 qt (3.741 L)

Differential fluid (rear differential) · Rear Axle 11.8 Single Rear Wheel, electric locking differential · PDF page 255
4.05 qt (3.83 L)

Differential fluid (rear differential) · Rear Axle 12.4, limited slip · PDF page 255
4.65 qt (4.399 L)

Differential fluid (front differential) · Front Axle 9.25, four-wheel drive without limited slip · PDF page 250
2.20 qt (2.08 L)

Differential fluid (front differential) · Front Axle 9.25, four-wheel drive with limited slip · PDF page 250
2.20 qt (2.08 L)

Differential fluid (front differential) · Front Axle 10.08, all · PDF page 250
2.75 qt (2.6 L)

All versions

11 values

Applies to	Value	Manual says	Page
Front Axle 9.25, four-wheel drive without limited slip	2.20 qt (2.08 L) qtfront differential	“2.20 qt (2.08 L)”	PDF page 250 ↗
Front Axle 9.25, four-wheel drive with limited slip	2.20 qt (2.08 L) qtfront differential	“2.20 qt (2.08 L)”	PDF page 250 ↗
Front Axle 10.08, all	2.75 qt (2.6 L) qtfront differential	“2.75 qt (2.6 L)”	PDF page 250 ↗
Rear Axle 10.8, open differential	3.68 qt (3.48 L) qtrear differential	“3.68 qt (3.48 L)”	PDF page 253 ↗
Rear Axle 10.8, limited slip differential	3.46 qt (3.271 L) qtrear differential	“3.46 qt (3.271 L)”	PDF page 253 ↗
Rear Axle 11.6, 4.30 final drive ratio	4.44–4.54 qt (4.2–4.3 L) qtrear differential	“4.44–4.54 qt (4.2–4.3 L)”	PDF page 253 ↗
Rear Axle 11.6, other final drive ratios (3.31/3.55/3.73)	4.33–4.44 qt (4.1–4.2 L) qtrear differential	“4.33–4.44 qt (4.1–4.2 L)”	PDF page 253 ↗
Rear Axle 11.8 Light Duty and Heavy Duty, open differential	4.21 qt (3.98 L) qtrear differential	“4.21 qt (3.98 L)”	PDF page 254 ↗
Rear Axle 11.8 Light Duty and Heavy Duty, limited slip	3.95 qt (3.741 L) qtrear differential	“3.95 qt (3.741 L)”	PDF page 254 ↗
Rear Axle 11.8 Single Rear Wheel, electric locking differential	4.05 qt (3.83 L) qtrear differential	“4.05 qt (3.83 L)”	PDF page 255 ↗
Rear Axle 12.4, limited slip	4.65 qt (4.399 L) qtrear differential	“4.65 qt (4.399 L)”	PDF page 255 ↗

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Original sourcePDF pages 253, 254, 255 and 250

2026 Ford Super Duty Owner's Manual