2022 Tesla Model 3 Fluid Type & Capacity Specs

As an All-Electric Vehicle (EV), the 2022 Tesla Model 3 has a much simpler fluid maintenance schedule than its internal combustion engine (ICE) counterparts. It has no engine oil, traditional engine coolant, transmission fluid, power steering fluid, or exhaust fluid to worry about. However, several critical fluids are essential for its longevity and performance, particularly for the battery and drive unit thermal management system.

This guide covers the factory-specified fluids for your 2022 Tesla Model 3. Using the correct fluid is critical, especially for the battery coolant and drive unit gear oil, as improper fluids can lead to costly damage to high-voltage components.

Quick Reference

Fluid	Type/Spec	Capacity
Battery Coolant	Tesla G-48 Ethylene Glycol	Approx. 9.0–10.4 L (9.5–11.0 qt)
Brake Fluid	DOT 3	Approx. 1.0 L (1.1 qt) for a flush
Gearbox / Drive Unit Oil	Tesla ATF D2 / Pentosin ATF 9	Approx. 1.35–2.1 L (1.4–2.2 qt) per unit
Windshield Washer Fluid	Standard / Bug Remover	-

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Battery Coolant

Type: Tesla specifies a unique blue-colored, ethylene glycol-based coolant known as Tesla G-48 Coolant. It is specifically formulated for the thermal management of the battery pack and powertrain.

Capacity: The total system capacity can range from approximately 9.0 to 10.4 liters (9.5 to 11.0 quarts), depending on the vehicle configuration (RWD vs. Dual Motor AWD). A standard drain-and-fill procedure may replace a smaller amount.

Notes: This is the most critical fluid in the vehicle. The thermal management system is responsible for heating and cooling the battery to ensure optimal performance, longevity, and charging speed.

• Critical Pitfall: NEVER use universal or any other type of coolant (e.g., standard green, orange Dex-Cool, or purple OAT). The specific additives and composition of Tesla G-48 are required to prevent corrosion of the sensitive electronics and cooling plates within the high-voltage battery. Using the wrong coolant can lead to catastrophic battery failure.
• Service Interval: Tesla recommends a full coolant flush every 4 years or 50,000 miles. However, the system is sealed, and service should only be performed by a qualified technician familiar with Tesla high-voltage systems due to the safety risks involved.

Brake Fluid

Type: The factory specification for the 2022 Model 3 is DOT 3 Brake Fluid. While DOT 4 fluid has a higher boiling point and is compatible, it is also more hygroscopic (absorbs moisture faster), potentially requiring more frequent changes. Stick with a quality DOT 3 from a sealed container for best results unless you have a specific performance-based reason to upgrade.

Capacity: A full brake fluid flush will require approximately 1.0 liter (1.1 quarts) of fluid.

Notes: Because EVs use regenerative braking, the hydraulic friction brakes are used less frequently than in a traditional car. However, the fluid itself still degrades over time by absorbing moisture from the air. This moisture lowers the boiling point, which can lead to a soft pedal or brake failure under heavy use, and can also cause internal corrosion in the ABS and traction control module.

• Service Interval: Tesla recommends testing the brake fluid for moisture content every 2 years and replacing it as needed. It's a good practice to replace it every 2-3 years regardless of mileage.

Gearbox / Drive Unit Oil

Type: The Model 3's drive units contain a reduction gearbox that requires a specific lubricant. The specification is often listed as Tesla ATF D2, which cross-references to fluids like Pentosin ATF 9.

Capacity: The capacity varies slightly depending on whether you have a Rear-Wheel Drive (single motor) or Dual Motor All-Wheel Drive model.

• Rear Drive Unit: Approx. 2.1 L (2.2 qt)
• Front Drive Unit (AWD models): Approx. 1.35 L (1.4 qt)

Notes: This fluid lubricates the single-speed reduction gear in the drive unit(s). Unlike an engine, there are no combustion byproducts to contaminate the oil, so the service interval is very long.

• Critical Pitfall: Do not use standard gear oil (e.g., 75W-90) or any other type of ATF. The specific viscosity and additive package of the recommended fluid is required for proper lubrication and cooling of the high-speed integrated motor and gearbox.
• Service Interval: There is no official replacement interval specified by Tesla for this fluid under normal driving conditions. It is considered "fill-for-life" but should be inspected for leaks during service and may be changed by some owners or shops as a preventative measure at very high mileage (100,000+ miles).

Windshield Washer Fluid

Type: Any standard, commercially available windshield washer fluid is acceptable. In colder climates, use a fluid with a low freezing point to prevent damage to the reservoir and lines. In warmer climates, a "bug remover" type can be beneficial.

Notes: This is the only fluid that the owner is expected to top off regularly. The fill port is located in the front trunk ("frunk") area. Do not use water, as it will not clean effectively and can freeze in cold weather.

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This reference is for the 2022 Tesla Model 3. Fluid specifications and capacities can change between model years and vehicle configurations. Always verify with your owner's manual or OEM service information before adding or replacing any fluid.

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