Honda Clarity Fuel Cell Fluid Capacities
Factory fluid capacity for the Honda Clarity Fuel Cell.
Last updated: 2026-11-01 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2021 Honda Clarity Fuel Cell: — SE-A2 (POE).
| Generation | Years | Top spec |
|---|---|---|
| 2021 | 2021 | — SE-A2 (POE) |
| 2020 | 2020 | — SE-A2 (POE) |
| 2018-2019 | 2018-2019 | — SE-A2 (POE) |
This vehicle's factory manual
Honda Clarity Fuel Cell: choose your year, then confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Honda Clarity Fuel Cell maintenance schedule
Know the exact fluid capacities job for your Honda Clarity Fuel Cell
2021 Honda Clarity Fuel Cell: — SE-A2 (POE).
Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Exact Vehicle Check
The button opens the factory book for this vehicle. Use the engine picker only when your trim is not the one this page already matched.
2021
- →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.
2020
- →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.
2018-2019
- →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.
2017
- →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.
Parts and supplies
These links search for related products. Check your year, engine, specification, and fitment with the seller before ordering.
Honda Clarity Fuel Cell Fluid Service Kit
Confirm the specification and fitment for your exact vehicle before ordering.
We earn a small commission if you buy through these links — at zero extra cost to you. These are search results, not verified vehicle-specific recommendations.
Fluids — Manual's Parts List
Everything for a full fluid service weekend.
- 1Engine OilShop →
Match viscosity to your spec
- 2CoolantShop →
Match color/chemistry — never mix types
- 3Long-Neck FunnelShop →
Transmission and differential fill holes are recessed
- 4Fluid Extraction PumpShop →
Remove old brake fluid from reservoir without mess
- 5Shop RagsShop →
You will need more than you think
Get everything at once
Search results vary; confirm each item and its fitment before buying.
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One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Fluid Extraction Pump
Cleanly remove old fluids from reservoirs.
Clean Shop Rags
Lint-free rags for cleaning dipsticks and spills.
Multi-Purpose Funnel
Long-neck funnel for hard-to-reach fill points.
Nitrile Gloves
Keep hands clean during multi-fluid maintenance.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Honda Clarity Fuel Cell so the job is ready when the parts arrive.
Frequently Asked Questions
- What fluid capacities does a Honda Clarity Fuel Cell use?
- 2021 Honda Clarity Fuel Cell: — SE-A2 (POE).
- Why do fluid capacities vary by generation for the Honda Clarity Fuel Cell?
- Different engine options, transmission types, and cooling system designs across model years change total fluid volumes. Always use the capacity listed for your exact year and engine code — do not guess across generations.
Find your service manual
Select your vehicle and check the available manual sections for your exact configuration.
Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-11-01