As a rule of thumb, Honda outboards take 0.26-8.2 US quarts of Honda marine engine oil and 0.05-1.55 US quarts of gear case oil depending on the model. To be more precise, the oil capacity in each class is as follows:
- 2.3- 30 HP – Engine oil: 0.26-1.4 qt. / Gear case oil: 0.05-0.3 qt.
- 40-100 HP – Engine oil: 1.7-4.6 qt. / Gear case oil: 0.53-1.0 qt.
- 115-250 HP – Engine oil: 6.9-8.2 qt. / Gear case oil: 1.04-1.55 qt.
If you want to find out more about the oil capacity of Honda outboards, this post is for you.
We at PowerSportsGuide have compiled all you need to know under one roof!
How Much Engine Oil Does a Honda Outboard Take?
How Much Oil Does a 2.3 HP Honda Outboard Take?
The smallest Honda outboard, the BF2.3 only takes 0.26 US quart of engine oil and 0.05 quart of gear case oil.
How Much Oil Does a 5 HP Honda Outboard Take?
The tiny portable BF4, BF5, and BF6 Honda outboards share the same 139cc, 2-cylinder engine.
When it comes to an oil change, these motors require 0.56 quart of engine oil and 0.1 quart of gear case oil.
How Much Oil Does an 8-20 HP Honda Outboard Take?
Interestingly, each 8-20 HP Honda outboard engine shares the same bottom end, including the 212cc (8-10 HP) and 350cc (15-20 HP) engine options.
The engine oil capacity of these Honda motors is 1.4 quarts with filter replacement and 1.1 quarts without it.
For the gear case oil replacement you will need 0.3 quart of fresh oil.
How Much Oil Does a 25-30 HP Honda Outboard Take?
25-30 HP Honda outboards share the same 552cc triple engine.
This lively power source takes 2.0 US quarts of engine oil with a filter and 1.7 US quarts without it.
The gear case oil capacity is only 0.3 quart.
How Much Oil Does a 40-50 HP Honda Outboard Take?
40 and 50-HP Honda outboards are all designed with the same 4-stroke, 808cc, SOHC, 3-cylinder engine.
You can expect the oil capacity of this lively triple to be 2.1 US quarts without filter replacement. Replacing the filter means you will need an extra 0.4 quarts of oil (total: 2.5 quarts).
The gear case oil capacity of these motors is uniformly 0.53 quart.
How Much Oil Does a 60 HP Honda Outboard Take?
The only 60 HP Honda outboard, the BF60 takes 2.9 US quarts of engine oil with a filter and 2.7 US quarts without it.
The gear case oil capacity of the BF60 is only 0.45 quart.
How Much Oil Does a 65-115 HP Honda Outboard Take?
As a rule of thumb, all 65-100 HP Honda outboards utilize the same 1496cc, inline-4, 16-valve, SOHC, EFI engine.
This midrange series includes the standard prop models including the BF75, BF90, and BF100, while the unique 65JET comes with jet propulsion.
The engine oil capacity of these models is 4.6 quarts with filter replacement and 4.4 quarts without it. For gear case oil replacement, you will need 1.0 quart of fresh oil.
How Much Oil Does a 105-150 HP Honda Outboard Take?
As a rule of thumb, each 105-150 HP Honda outboard is powered by the same 2354cc, DOHC, inline-4 engine.
These models include the BF115, BF140, BF150, and the jet-powered 105JET.
The engine oil capacity of these units is uniformly 6.9 US quarts with a filter and 6.7 US quarts without it.
You can expect the gear case oil capacity to be 1.04 quarts.
How Much Oil Does a 200-250 HP Honda Outboard Take?
All 200-250 Honda outboards (including the BF200, BF225, and BF250) share the same 4-stroke, 3583cc, SOHC, 24-valve, V6 engine.
This high-performance V6 Honda marine engine takes 8.2 US quarts of engine oil with a filter and 8.0 US quarts without it.
The gear case oil capacity of these motors is 1.55 quarts.
Honda Outboard Engine Oil Capacity Chart
For your convenience, we’ve compiled the oil capacities of production Honda outboards into one chart:
| Model | Engine Oil w/o Filter (US qt) | Engine Oil w/ Filter (US qt) | Displacement (cc) |
| BF2.3 | 0.26 qt. | – | 57cc |
| BF5 | 0.56 qt. | – | 127cc |
| BF8 | 1.1 qt. | 1.4 qt. | 222cc |
| BF10 | 1.1 qt. | 1.4 qt. | 222cc |
| BF15 | 1.1 qt. | 1.4 qt. | 350cc |
| BF20 | 1.1 qt. | 1.4 qt. | 350cc |
| BF25 | 1.7 qt. | 2.0 qt. | 552cc |
| BF30 | 1.7 qt. | 2.0 qt. | 522cc |
| BF40 | 2.1 qt. | 2.5 qt. | 808cc |
| BF50 | 2.1 qt. | 2.5 qt. | 808cc |
| BF60 | 2.7 qt. | 2.9 qt. | 998cc |
| 40JET | 2.7 qt. | 2.9 qt. | 998cc |
| 65JET | 4.4 qt. | 4.6 qt. | 1496cc |
| BF75 | 4.4 qt. | 4.6 qt. | 1496cc |
| BF90 | 4.4 qt. | 4.6 qt. | 1496cc |
| BF100 | 4.4 qt. | 4.6 qt. | 1496cc |
| 105JET | 6.9 qt. | 7.1 qt. | 2354cc |
| BF115 | 6.9 qt. | 7.1 qt. | 2354cc |
| BF140 | 6.9 qt. | 7.1 qt. | 2354cc |
| BF150 | 6.9 qt. | 7.1 qt. | 2354cc |
| BF200 | 8.0 qt. | 8.2 qt. | 3583cc |
| BF225 | 8.0 qt. | 8.2 qt. | 3583cc |
| BF250 | 8.0 qt. | 8.2 qt. | 3583cc |
Honda Outboard Gear Case Oil Capacity Chart
| Model | Gear Case Oil (US qt.) |
| BF2.3 | 0.05 qt. |
| BF5 | 0.1 qt. |
| BF8 | 0.3 qt. |
| BF10 | 0.3 qt. |
| BF15 | 0.3 qt. |
| BF20 | 0.3 qt. |
| BF25 | 0.3 qt. |
| BF30 | 0.3 qt. |
| BF40 | 0.53 qt. |
| BF50 | 0.53 qt. |
| BF60 | 0.45 qt. |
| 40JET | 1.0 qt. |
| 65JET | 1.0 qt. |
| BF75 | 1.0 qt. |
| BF90 | 1.0 qt. |
| BF100 | 1.0 qt. |
| 105JET | 1.04 qt. |
| BF115 | 1.04 qt. |
| BF140 | 1.04 qt. |
| BF150 | 1.04 qt. |
| BF200 | 1.55 qt. |
| BF225 | 1.55 qt. |
| BF250 | 1.55 qt. |
Disclaimer: These charts are for informational purposes only! For more information, please check the owner’s manuals.
Takeaways
The engines of Honda outboard motors take 0.26-8.2 quarts of oil depending on their displacement and architecture.
You can find the smallest single and twin engines in the portable 2.3-20 HP Honda outboards, and these motors only take 0.26-1.7 quarts of oil.
Midrange models with 40-100 HP engines take 2.1-4.4 quarts of engine oil, while the high-performance 115-250 HP motors take 6.9-8.2 quarts.
The gear case oil capacity of Honda outboards averages between 0.05 and 1.55 quarts.
(Disclaimer: This post is only for informational purposes, since the oil capacity may vary depending on the model year. For more specific information please refer to your owner’s manual.)
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