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Ford Mustang Fluid Capacities | 2018-21

Created by Taylor Ward
Last Updated 8/26/2021

Looking for the fluid capacities for your 2018-21 Mustang? Check out LMR's quick and easy S550 fluid capacity guide to get your Mustang properly maintained!

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2018-2021 Ford Mustang Fluid Capacity - 2018-2021 Ford Mustang Fluid Capacity
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2018-21 Mustang S550 Fluid Capacities


S550 Mustang (18-21) Oil Capacity

  • 2.3L EcoBoost (FL910S Oil Filter)
    • 2018 5.7 qts
    • 2019-2021 6.0 qts
  • 5.0L V8 (FL500S Oil Filter)
    • 10 qts
  • 5.2L V8 GT350/GT500 (FL2062 Oil Filter)
    • 10 qts
Check out our oil change kits here: S550 Mustang Oil Components

S550 Mustang (18-21) Coolant System Capacity

  • 2.3L EcoBoost
    • 9.5 qts (2.37gal)
  • 5.0L V8
    • 13.6 qts (3.4gal)
    • 14 qts (3.5gal) w/performance pack
  • 5.2L V8 GT350/GT500
    • 15.2 qts
Check out our Cooling System Accessories here: S550 Mustang Coolant Accessories

S550 Mustang (18-21) Transmission Fluid Capacity

  • 2.3L/5.0L Ecoboost/V8 Auto
    • 13 qts
  • 5.2L V8 GT350
    • 2.5 qts w/o cooler
    • 3.3 qts w/cooler
  • 2020-21 5.2L V8 GT500
    • 8.0 qts GT500 DCT
  • 2.3L | 5.0L | Manual
    • 2.7 qts DCT
Check out our Drivetrain Components here: S550 Mustang Drivetrain Components

S550 Mustang (18-21) Rear End Fluid Capacity

  • 2.3L EcoBoost & 5.0L V8 (3.28 oz friction modifier)
    • 2018-2021 1.6 qts
  • 5.2L V8 GT350/GT500 (4.23 oz friction modifier)
    • 2.0 qts
Check out our rear end components here: S550 Mustang Rear End Gears

Oil Viscosity Explained

Why do I see a “W” on my engine and gear oil? Simply explained, this means the oil being used is a multi-viscosity application. The ‘W” in motor and gear oil stands for winter. The first number you see is the classification of cold weather viscosity. The smaller the number is on this first number means the oil being used will be less viscous at lower temps. The second number after the “W” is the high temp viscosity, or how the oil is at operating temps. Once again, the higher the number, the thicker the oil would be. Thicker oil is not always better, depending on the age and wear of the engine, thicker viscosity oil can benefit you. On a brand new engine, this could actually hurt you. Ford and other manufactures have specifications normally listed on the oil cap or in the factory owner’s manual.