As a rule of thumb, the fuel consumption of Honda outboards averages somewhere between 0.32 and 24 gph at WOT. To be more precise, the average gph figures within each class are as follows:
- 2.3-20 HP (Portable): 0.32-1.6 gph
- 25-100 HP (Midrange): 2.2-11 gph
- 115-250 HP (High-Performance): 11-24 gph
Note that factors such as the specifications of the boat (weight, dimensions, hull design), propeller size, and water conditions may affect fuel consumption figures.
But in most cases, the gph figures of Honda outboards fall into the same ballpark, regardless of which boat the motor is pushing.
For your convenience, we at PowerSportsGuide have compiled these figures into one post!
How Much Fuel Does a Portable Honda Outboard Use?
Based on our research, the fuel consumption of portable Honda outboards is about 0.32-1.6 gph at WOT. The average fuel economy of the different breeds in this category is as follows (at WOT):
- Honda BF2.3: 0.32 gph
- Honda BF4: 0.35-0.40 gph
- Honda BF5: 0.35-0.45 gph
- Honda BF8: 0.8-0.9 gph
- Honda BF9.9: 0.9-1.0 gph
- Honda BF15: 1.4-1.5 gph
- Honda BF20: 1.5-1.6 gph
How Much Fuel Does a Midrange Honda Outboard Use?
The fuel consumption of midrange Honda outboards averages between 2.2 and 11 gph. Some of the most popular models in this breed are as follows:
- Honda BF25: 2.2-2.5 gph
- Honda BF30: 2.5-2.7 gph
- Honda BF40: 3.7-3.9 gph
- Honda BF50: 4.2-5.5 gph
- Honda BF60: 5.0-6.0 gph
- Honda BF75: 7.5-9.0 gph
- Hopnda BF90: 8.5-10.5 gph
- Honda BF100: 9.5-11 gph
Let’s get down to the gritty-gritty and talk about these motors in detail!
How Much Fuel Does a 25-30 HP Honda Outboard Use?
You can expect the fuel consumption of a 25-30 HP Honda outboard to be about 2.2-2.7 gph at WOT and 1.2-1.4 gph at 4000 RPM.
These motors share the same 552cc twin engine and features, except that the BF25 comes with a restricted engine power.
As an example, Trade a Boat tested a Honda BF30 on a Sea Jay 4.2 Nomad DLX hull that produced the following test results:
- Trolling speed: 0.13 gph at 800prm/2.2 mph
- Cruising: 1.4 gph at 4000rpm/16 mph
- WOT: 2.72 gph at 5700 rpm/27 mph
How Much Fuel Does a 40 HP Honda Outboard Use?
The Honda BF40 outboard enjoys an 808cc triple engine rated at 40 HP. This outboard motor burns about 3.5-4.0 gph at full throttle and 1.5-2.5 gph at 4000 RPM.
According to this review, a Horizon 4400 Runabout rigged with a Honda BF40 burned 3.72 gph at WOT (5600 RPM) and 1.45 gph at cruising speed (4000 RPM).
For further reference, here are the results of some factory performance tests:
- Walker Bay Generation 340 + Honda BF40:
3.88 gph/9.08 mpg (at WOT-35.3 mph)
1.59 gph/13.25 mpg (at 4000 rpm-35.3 mph)
- Grand 380 Gold Line (11’10” RIB) + Honda BF40:
3.8 gph/9.5 mpg (at WOT – 36 mph)
1.8 gph/13.9 mpg (at 4000rpm – 25 mph)
How many miles per gallon does a Honda 40 HP outboard get?
As a rule of thumb, a Honda BF40 gets about 8-10 mpg at WOT and 10-14 mpg at 4000 RPM.
How Much Fuel Does a 50 HP Honda Outboard Use?
The Honda BF50 borrows its 808cc triple engine from its de-tuned 40 HP sibling. This popular Honda outboard burns about 4.2-5.5 gph at WOT but at 4000 RPM, the fuel usage drops to about 1.6-2.5 gph.
Factory test results:
- Walker Bay Generation 400 (13’ RIB) + Honda BF50:
4.9 gph/6.2 mpg (at WOT-30.7 mph)
1.7 gph/10 mpg (at 4000rpm – 17 mph)
- Triumph 170 CC (16’10” fiberglass) + Honda BF50:
4.9 gph (at WOT-32 mph)
2.1 gph/11.5 mpg (at 4000rpm – 24.8 mph)
- Smoker Craft 160 Pro Angler (16’ alu) + Honda BF50: 4.4 gph at WOT and 1.6 gpt at 4000rpm
- Polar Kraft V165 SC Kodiak (16’4” alu) + Honda BF50: 4.4 gph at WOT and 1.3 gph at 4000rpm
- Alumacraft 16 MV Tex Special (16’ alu) + Honda BF50: 4.65 gph at WOT and 1.65 gph at 4000rpm
How many miles per gallon does a Honda 50 HP outboard get?
The economical Honda BF50 gets about 6-7 mpg at WOT and 8-13 mpg at 4000 RPM.
How Much Fuel Does a 60 HP Honda Outboard Use?
Based on our research, the Honda BF60 on a standard boat burns 5-6 gph at full throttle, which can be decreased to 2-3 gph at 4000 RPM. On a pontoon, it gets about 5-6 gph at WOT which translates to 3.5-4 mpg.
In this test, a 4.9 Stessl runabout rigged with a single Honda BFP60 hit 32.2 mph at 6000 RPM while burning 5.44 gph.
Cruising at 4000 RPM, the fuel consumption dropped to 1.95 gph.
Factory test results:
- War Eagle 761 Blackhawk (17’5”) + Honda BF60:
5.4 gph / 6.5 mpg (at WOT-6200rpm)
2.0 gph / 10.9 mpg (at 4000rpm)
- Walker Bay Generation 450 (14’9”) RIB + Honda BF60:
5.4 gph / 6 mpg (at WOT-6155rpm)
2.1 gph / 10 mpg (at 4000rpm) - Starcraft Starfire 1600 SC (15’11”, alu) + Honda BF60:
5.4 gph / 7.1 mpg (at WOT-6000rpm)
2.0 gph / 11.8 mpg (at 4000rpm)
How many miles per gallon does a Honda 60 HP outboard get?
The popular Honda BF60 gets about 5-7 mpg at WOT and 7-12 mpg at 4000 RPM.
How Much Fuel Does a 75 HP Honda Outboard Use?
You can expect the fuel consumption of a Honda BF75 to be in the ballpark of 7.5-9.0 gph at WOT on a standard boat, and about 6-7 gph on a pontoon.
Unlike its smaller siblings, this outboard houses a much larger, 4-stroke, 1496cc, 4-cylinder engine rated at 75 HP.
The significantly larger displacement ensures more power and torque but also leads to worse fuel economy.
Factory test results:
- Rider Boats 192 Pro Sport (19’2”, alu) + Honda BF75
9.0 gph / 3.9 mpg (at WOT-6200rpm)
3.9 gph / 5.4 mpg (at 4000rpm)
- Polar Kraft V 186 T (18’6”, alu) + Honda BF75:
7.6 gph / 5.0 mpg (at WOT-5600rpm)
2.9 gph / 9.1 mpg (at 4000rpm)
- Hewescraft 160 Sportsman (16’5”, alu) + Honda BF75:
7.7 gph / 4.8 mpg (at WOT-5500rpm)
4.5 gph / 5.9 mpg (at 4000rpm)
- Alumaweld 17 Stryker (17’, alu) + Honda BF75:
7.8 gph / 4.6 mpg (at WOT-5500rpm)
3.4 gph / 7.6 mpg (at 4000rpm)
How many miles per gallon does a Honda 75 HP outboard get?
The 4-cylinder Honda BF75 gets about 4-5 mpg at WOT and 5.5-9 mpg at 4000 RPM.
How Much Fuel Does a 90 HP Honda Outboard Use?
You can expect a 90 HP Honda outboard to get 8.5-10.5 gph at WOT and 3.3-6.4 gph at 4000 RPM.
Factory test results:
- Weldcraft 173 Rebel (17’3”, alu) + Honda BF90:
9.4 gph / 4.1 mpg (at WOT-6200rpm)
3.3 gph / 7.6 mpg (at 4000rpm)
- Ugly Boats 22’ Panga + Honda BF90:
10.5 gph / 3.6 mpg (at WOT-6250rpm)
4.5 gph / 5.7 mpg (at 4000rpm)
- Sundance B20CC Inshore (19’10”, fiberglass) + Honda BF90:
8.7 gph / 4.2 mpg (at WOT-5700rpm)
4.0 gph / 5.6 mpg (at 4000rpm)
- Stumpnocker 175CC (17’2”) + Honda BF90:
9.6 gph at WOT-6000rpm/ 4.2 gph at 4000rpm
- Smoker Craft Ultima 172 (17’2”) + Honda BF90:
9.0 gph / 4.6 mpg (at WOT-6100rpm)
3.6 gph / 7.0 mpg (at 4000rpm)
- Alumacraft Voyageur 175 (17’10”, alu) + Honda BF90:
9.0 gph / 4.1 mpg (at WOT-5800rpm)
3.0 gph / 8.7 mpg (at 4000rpm)
How many MPG does a Honda 90 outboard get?
The powerful Honda 90 HP outboard gets anywhere from 5-9 mpg at best cruising speed (ca. 4000 RPM) and 3-5 mpg at WOT.
How Much Fuel Does a 100 HP Honda Outboard Use?
Depending on the size and weight of the boat it propels, you can expect the fuel consumption of a 100 HP Honda outboard to be 9.5-11 gph at WOT and 3-4.5 gph at 4000 RPM.
Factory test results:
- Key West 1720 Sportsman (17’2”) + Honda BF100
10.0 gph / 4.1 mpg (at WOT-6300rpm)
4.3 gph / 5.8 mpg (at 4000rpm)
- Inventech 18’ RIB + Honda BF100:
10.3 gph / 4.0 mpg (at WOT-6100rpm)
3.1 gph / 8.6 mpg (at 4000rpm)
- Highfield Deluxe 540 (17’8” RIB) + Honda BF100:
10.1 gph / 4.0 mpg (at WOT-6250rpm)
4.2 gph / 5.3 mpg (at 4000rpm)
- Alumacraft Voyageur 175 (17’10”, alu) + Honda BF100:
9.9 gph / 4.14 mpg (at WOT-6300rpm)
3.2 gph / 7.9 mpg (at 4000rpm)
How many miles per gallon does a Honda 100 HP outboard get?
The Honda BF100 gets about 2.5-4.5 mpg at WOT and 5-9 mpg at 4000 RPM.
How Much Fuel Does a High-Performance Honda Outboard Use?
How Much Fuel Does a 115 HP Honda Outboard Use?
Rigged on a standard boat, 115 HP Honda outboards typically burn about 10.5-12 gph at WOT and about 4-5 gph at 4000 RPM. On a pontoon, it usually gets 9-10 gph.
Factory test results:
- Walker Bay Generation 525 (17’2” RIB) + Honda BF115:
10.5 gph / 3.95 mpg (at WOT-5650rpm)
4.95 gph / 5.68 mpg (at 4000rpm)
- Lund Tournament Pro SE (17.6’, alu) + Honda BF115:
10.3 gph / 4.1 mpg (at WOT-6000rpm)
4.5 gph / 6.3 mpg (at 4000rpm)
- Capecraft 190 Bay (19’, fiberglass) + Honda BF115:
10.3 gph / 4.08 mpg (at WOT-5750rpm)
5.4 gph / 5.2 mpg (at 4000rpm)
- Alumacraft Trophy 175 (17’8”, alu) + Honda BF115:
10.2 gph / 4.03 mpg (at WOT-5750rpm)
5.1 gph / 4.71 mpg (at 4000rpm)
How many MPG does a Honda 115 outboard get?
A 115 HP Honda outboard on a standard boat gets about 2-4 mpg at full throttle and about 4-7 mpg at 4000 RPM.
On a pontoon boat, the same motor can only get 2.5-3 mpg.
How Much Fuel Does a 150 HP Honda Outboard Use?
The Honda BF150 burns anywhere from 12-22 gph at WOT and about 4.5-7.0 gph at best cruising speed (ca. 4000 RPM).
Factory test results:
- Tidewater 2110 BayMax (21’6”) + Honda BF150:
22 gph / 1.82 mpg (at WOT-6000rpm)
7.00 gph / 3.57 mpg (at 4000rpm) - Northwest Jet (20’) + Honda BF150:
14.6 gph / 2.6 mpg (at WOT-6000rpm)
5.5 gph / 4.1 mpg (at 4000rpm)
- Mako 192 Center Console (19’4”) + Honda BF150:
15.4 gph / 2.9 mpg (at WOT-6150rpm)
6.3 gph / 4.3 mpg (at 4000rpm)
- Hewescraft Pro Vee ET 20 (22’) + Honda BF150:
14.4 gph / 3.0 mpg (at WOT-6000rpm)
4.6 gph / 5.9 mpg (at 4000rpm)
- Eastern Boats Pilot 21’ + Honda BF150:
13.5 gph / 3.27 mpg (at WOT-5990rpm)
6.2 gph / 4.35 mpg (at 4000rpm
How many miles per gallon does a Honda 150 outboard get?
Simply put, a 150 HP Honda outboard gets about 4-7 mpg at best cruising speed and about 2-4 mpg at WOT.
How Much Fuel Does a 250 HP Honda Outboard Use?
The fuel economy of the largest Honda outboard, the BF250 falls into the ballpark of 22-24 gph at WOT and 7.5-10 gph at 4000 RPM.
This motor houses a 4-stroke, 3583cc, V6 engine rated at 250 HP.
Factory test results:
- Tidewater 232 Fiberglass CC 23’ + Honda BF250:
22.4 gph / 2.1 mpg (at WOT-6000rpm)
7.7 gph / 3.7 mpg (at 4000rpm) - Hurricane SunDeck Sport SS 231 (23’2”) O.B + Honda BF250:
23.8 gph / 2.0 mpg (at WOT-6000rpm)
8.2 gph / 3.9 mpg (at 4000rpm)
- Hurricane 217 OB (21’) + Honda BF250:
20.3 gph / 2.46 mpg (at WOT-5850rpm)
8.8 gph / 3.82 mpg (at 4000rpm)
- Hewescraft 2200 Ocean Pro + Honda BF250:
23.4 gph / 1.97 mpg (at WOT-6250rpm)
8.2 gph / 3.44 mpg (at 4000rpm)
- Crevalle 24 Bay + Honda BF250:
22.5 gph / 2.24 mpg (at WOT-6140rpm)
10.0 gph / 3.25 mpg (at 4000rpm)
How many miles per gallon does a Honda 250 outboard get?
250 HP Honda outboards get about 3-4 mpg at best cruising speed and 2-2.5 mpg at WOT.
Takeaways – Honda Outboard Fuel Consumption Chart
As a takeaway, we’ve compiled the average fuel consumption figures of the most popular Honda outboards into one chart:
Honda Outboard GPH Chart
| Model | GPH at WOT | GPH at 4000 RPM |
| BF2.3 | 0.32 gph | na |
| BF4 | 0.35-0.40 gph | na |
| BF5 | 0.35-0.45 gph | na |
| BF8 | 0.8-0.9 gph | na |
| BF10 | 0.9-1.0 gph | na |
| BF15 | 1.2-1.5 gph | na |
| BF20 | 1.3-1.6 gph | na |
| BF25 | 2.2-2.5 gph | na |
| BF30 | 2.5-2.7 gph | 1.3-1.4 gph |
| BF40 | 3.5-4.0 gph | 1.5-1.8 gph |
| BF50 | 4.2-5.5 gph | 1.6-2.5 gph |
| BF60 | 5.0-6.0 gph | 2.0-3.0 gph |
| BF75 | 7.5-9.0 gph | 2.8-4.5 gph |
| BF90 | 8.5-10.5 gph | 3.3-6.4 gph |
| BF100 | 9.5-11.0 gph | 3.0-4.5 gph |
| BF115 | 10.5-12.0 gph | 4.0-5.0 gph |
| BF150 | 12-22 gph | 4.5-7.0 gph |
| BF250 | 22-24 gph | 7.5-10.0 gph |
Honda Outboard MPG Chart
| Model | MPG WOT | MPG at 4000 RPM |
| BF40 | 8-10 mpg | 10-14 mpg |
| BF50 | 6-7 mpg | 7-13 mpg |
| BF60 | 5-7 mpg | 6-12 mpg |
| BF75 | 4-5 mpg | 5.5-9 mpg |
| BF90 | 3-5 mpg | 5-9 mpg |
| BF100 | 2.5-4.5 mpg | 4.5-9 mpg |
| BF115 | 2.0-4.0 mpg | 4-7 mpg |
| BF150 | 1.5-3.5 mpg | 3.5-6.5 mpg |
| BF250 | 2.0-2.5 mpg | 3.0-4.0 mpg |
Disclaimer: These charts are for informational purposes only! The fuel consumption of a Honda outboard is dependent on many factors.
Sources:
boat-fuel-economy.com, marine.honda.com
