2021 Ford Mustang Specs
For 2021 the Mustang adds the 480 hp Mach 1 alongside the 310 hp 2.3L EcoBoost, the 330 hp EcoBoost High Performance Package and the 460 hp 5.0L V8 GT. The 5.0L V8 now calls for SAE 5W-30 oil.
4 versions · 6th gen (S550) · Updated Sep 2026
- Oil capacity
- 6.0–10.0 qt
- by version ↓
- Tire size
- 17–19″
- by version ↓
- Bolt pattern
- 5x114.3
- all versions
- MPG combined
- 18–25 mpg
Versions #versions
Compare versions #compare
| 2.3L EcoBoost | 2.3L EcoBoost High Performance | 5.0L V8 GT | 5.0L V8 Mach 1 | |
|---|---|---|---|---|
| Horsepower | 310 hp | 330 hp | 460 hp | 480 hp |
| Torque | 350 lb-ft | 350 lb-ft | 420 lb-ft | 420 lb-ft |
| Transmission | 6-speed manual / 10-speed automatic | 6-speed manual / 10-speed automatic | 6-speed manual / 10-speed automatic | 6-speed manual / 10-speed automatic |
| Oil capacity | 6.0 qt | 6.0 qt | 10.0 qt | 10.0 qt |
| Tire size | 235/55R17 | 255/40R19 | 235/50R18 | 255/40R19 |
| MPG combined | 25 mpg | 23 mpg | 19 mpg | 18 mpg |
| Curb weight | 3,492 lb | — | 3,730 lb | — |
| Fuel tank | 15.5 gal | 15.5 gal | 16.0 gal | 16.0 gal |
Recalls #recalls
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Brake fluid warning repair under 23V727 done incorrectly
NHTSA 25V689000 · Oct 10, 2025 · Body control module
Some cars repaired under recall 23V727 were fixed incorrectly, so the low brake fluid warning light may still not turn on.
-
Low-pressure fuel pump may fail and stall the engine
NHTSA 25V455000 · Jul 7, 2025 · Low-pressure fuel pump
The low-pressure fuel pump may fail, which can stall the engine while driving.
-
Software error may blank the rearview camera image
NHTSA 25V442000 · Jun 27, 2025 · Rearview camera software
A software error can cause the rearview camera to display a blank image.
-
Low brake fluid warning may not turn on
NHTSA 23V727000 · Oct 27, 2023 · Body control module
The brake fluid level sensor may not switch on the warning light when brake fluid runs low.
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Passenger knee air bag weld may be insufficient
NHTSA 22V083000 · Feb 16, 2022 · Passenger knee air bag
A weak weld on the front passenger knee air bag may cause it to deploy improperly.
-
Side curtain air bag inflators may deploy improperly
NHTSA 21V980000 · Dec 16, 2021 · Side curtain air bags
The side curtain air bag inflators may contain the wrong amount of compressed gas, leading to improper inflation.
FAQ
What is the bolt pattern on a 2021 Ford Mustang?
All 2021 Mustangs use a 5x114.3 (5 x 4.5 in) bolt pattern with M14x1.5 lug nuts.
What is the lug nut torque on a 2021 Mustang?
Ford specifies 150 lb-ft for the M14x1.5 wheel lug nuts.
Sources: 2021 Ford Mustang Owner's Manual (Mar 2021 printing), 2021 Ford Mustang brochure, EPA fueleconomy.gov, NHTSA recalls, Ford Performance Parts (bolt pattern), Edmunds (curb weight, dimensions, base tire sizes). Updated Sep 2026.