2021 Ford Mustang 2.3L EcoBoost High Performance Specs
Trims: EcoBoost with High Performance Package, EcoBoost Premium with High Performance Package · 6th gen (S550) · Updated Sep 2026
- Horsepower
- 330 hp
- 350 lb-ft
- Oil capacity
- 6.0 qt
- with filter
- Oil type
- SAE 5W-50
- Tire size
- 255/40R19
- MPG combined
- 23 mpg
Specs #specs
The 2021 Ford Mustang 2.3L EcoBoost High Performance makes 330 hp and 350 lb-ft of torque.
| Horsepower | 330 hp |
|---|---|
| Torque | 350 lb-ft |
| Transmission | 6-speed manual, 10-speed automatic |
| Drivetrain | RWD |
| Fuel tank | 15.5 gal |
| Width | 75.4 in |
| Wheelbase | 107.1 in |
Engine #engine
| Engine | 2.3L EcoBoost I4 (High Performance Package) |
|---|---|
| Displacement | 2.3 L |
| Cylinders | I4 |
| Aspiration | Turbocharged |
| Fuel | Gasoline |
| Compression ratio | 9.37:1 |
| Firing order | 1-3-4-2 |
Oil capacity & fluids #oil-capacity
The 2021 Ford Mustang 2.3L EcoBoost High Performance takes 6.0 quarts of SAE 5W-50 oil with a filter change.
| Engine oil (with filter) | 6.0 qt |
|---|---|
| Oil type | SAE 5W-50 |
| Coolant | 9.5 qt |
| Automatic transmission fluid (approx. dry fill) | 12.7 qt MERCON ULV |
| Manual transmission fluid | 2.7 qt |
| Brake fluid | DOT 4 LV |
Wheels & tires #tire-size
The 2021 Ford Mustang 2.3L EcoBoost High Performance comes with 255/40R19 tires. The bolt pattern is 5x114.3.
| Tire size | 255/40R19 |
|---|---|
| Wheel size | 19x9 |
| Bolt pattern | 5x114.3 |
| Thread size | M14x1.5 |
| Lug nut torque | 150 lb-ft |
Fuel economy #mpg
| City | Highway | Combined | |
|---|---|---|---|
| 10-speed automatic | 20 | 27 | 23 |
| 6-speed manual | 20 | 27 | 22 |
Maintenance schedule #maintenance
| Engine oil & filter (Oil-Life Monitor, at most) | 10,000 mi / 12 mo |
|---|---|
| Cabin air filter | 20,000 mi |
| Engine air filter | 30,000 mi |
| Spark plugs | 100,000 mi |
6 recalls for the 2021 Ford Mustang →
FAQ
What oil does the 2021 Mustang High Performance Package take?
The 2.3L High Performance engine takes 6.0 quarts of SAE 5W-50 including the filter.
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.