Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2021 Honda Clarity Fluid Capacities

OEM fluid capacity chart from the factory service manual for the 2021 (2021).

Quick Answer

Air Cond Compressor Oil (Hydrogen)

— SE-A2 (POE) Note: Capacity is between: 4.26 - 5.24 ozs.

Automatic Transmission Fluid (Hydrogen,Automatic EDT Trans)

1.85 QTS. (1.75 L) — HONDA Automatic Transmission Fluid ATF DW-1

Brake Fluid

— HONDA Heavy Duty Brake Fluid DOT 3

Differential Gear Oil

1.30 QTS. (1.23 L) — HONDA Dual PUMP Fluid II

Engine Coolant (Hydrogen)

0.81 QTS. (0.76 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: Change including the remaining 0.21 US gal (0.80 L) in the reserve tank.

Engine Oil

3.30 QTS. (3.12 L) — Genuine HONDA Motor Oil 0W-20. API- Premium-grade 0W-20 detergent Oil

Air Cond Compressor Oil (Gas/Electric)

— SE-A2 (POE) Note: Capacity is between: 4.73 - 5.76 ozs.

Automatic Transmission Fluid (Gas/Electric,Automatic CVT Trans)

2.23 QTS. (2.11 L) — HONDA Automatic Transmission Fluid ATF DW-1

Engine Coolant (Gas/Electric)

6.58 QTS. (6.22 L) — HONDA Long-Life Antifreeze/Coolant Type 2

Notes

→Capacity is between: 4.26 - 5.24 ozs.
→Capacity is between: 0.87 - 0.98 lbs.
→Change including the remaining 0.21 US gal (0.80 L) in the reserve tank.
→Capacity is between: 4.73 - 5.76 ozs.

Source: Factory service manual — 2021 Honda Clarity 2021.

Other specs:All specs Oil Type Coolant Trans Fluid Brake Fluid

This vehicle's factory manual

2021 Honda Clarity: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.

Open this vehicle’s service manual

What You'll Need

Tools

Fluid Funnel Set

Search Amazon →

Tool

Large Capacity Drain Pan

Search Amazon →

Related for Your 2021 Honda Clarity

Maintenance Specs

🛢️Oil Type & Capacity ❄️Coolant Type ⚙️Transmission Fluid 🚨Brake Fluid

Quick Actions

🏠2021 Honda Clarity Hub 🛠️All Repair Guides 🤖AI Diagnosis

Frequently Asked Questions

What are the fluid capacities for a 2021 Honda Clarity?: The 2021 Honda Clarity fluid capacities are: Air Cond Compressor Oil (Hydrogen): — SE-A2 (POE) Note: Capacity is between: 4.26 - 5.24 ozs., Automatic Transmission Fluid (Hydrogen,Automatic EDT Trans): 1.85 QTS. (1.75 L) — HONDA Automatic Transmission Fluid ATF DW-1, Brake Fluid: — HONDA Heavy Duty Brake Fluid DOT 3, Differential Gear Oil: 1.30 QTS. (1.23 L) — HONDA Dual PUMP Fluid II, Engine Coolant (Hydrogen): 0.81 QTS. (0.76 L) — HONDA Long-Life Antifreeze/Coolant Type 2 Note: Change including the remaining 0.21 US gal (0.80 L) in the reserve tank., Engine Oil: 3.30 QTS. (3.12 L) — Genuine HONDA Motor Oil 0W-20. API- Premium-grade 0W-20 detergent Oil, Air Cond Compressor Oil (Gas/Electric): — SE-A2 (POE) Note: Capacity is between: 4.73 - 5.76 ozs., Automatic Transmission Fluid (Gas/Electric,Automatic CVT Trans): 2.23 QTS. (2.11 L) — HONDA Automatic Transmission Fluid ATF DW-1, Engine Coolant (Gas/Electric): 6.58 QTS. (6.22 L) — HONDA Long-Life Antifreeze/Coolant Type 2.
How much engine oil does a 2021 Honda Clarity take?: The 2021 Honda Clarity takes 3.30 QTS. (3.12 L) — Genuine HONDA Motor Oil 0W-20. API- Premium-grade 0W-20 detergent Oil.