Navalyze · Vehicle carrier · Ship

DIONYSOS LEADER

IMO: 9426350
Type: Vehicle carrier
Average cargo carried: 3,961 t
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EEXI 14.10 g CO₂/t·nm

ISM company (DoC holder) in 2025: HACHIUMA STEAMSHIP CO.,LTD.

Report year

2021 at a glance

From the 2021 THETIS-MRV report. Carries about 5,034 t of cargo on average.

Fuel kg/nm

99.2

Vehicle carrier median 103 kg/nm (−4%)

CO₂ per transport work (cargo)

62.3

g CO₂/t·nm · Vehicle carrier median 59.6 (+5%)

Average speed

14.3 kn

Vehicle carrier median 14.4 kn (−1%)

Fuel per day at sea

34.0 t/day

Fuel consumed

2,111 t

CO₂ emitted

6,672 t

Distance sailed

21,280 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,490 h

62 days, 17% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 106 kg/nm · median 99.9 (+6%)

79.6Ranks 349 of 506, lowest first119

Average speedThis ship 14.5 kn · median 14.4 (+1%)

12.0Faster than 53% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 85.3 g CO₂/t·nm · median 55.4 (+54%)

34.7Ranks 379 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2021

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports7%
From the EU35%
Into the EU55%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

156 t

2.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Vehicle carrier median is the middle ship of all vehicle carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

DIONYSOS LEADER
Vehicle carrier median

80.090.0100.0110.0120.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

DIONYSOS LEADER
Vehicle carrier median

13.014.015.016.017.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

DIONYSOS LEADER
Vehicle carrier median

0.050.0100150200

’182018’192019’202020’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.6 kn	+2%	−8%	−67%	–	1.6 kn slower, fuel per mile up 2%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+1.0 kn	+20%	+28%	−23%	–	1.0 kn faster, fuel per mile up 20%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.9 kn	−17%	−22%	−53%	+236%	0.9 kn slower, fuel per mile down 17%; better than speed alone explains (hull, engine or trade).
2021→2022	+1.7 kn	+5%	+18%	+60%	−27%	1.7 kn faster, fuel per mile up 5%; better than speed alone explains (hull, engine or trade).
2020→2021	−0.5 kn	+6%	+2%	+65%	+1%	0.5 kn slower, fuel per mile up 6%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2020	−0.9 kn	−10%	−15%	+43%	+13%	0.9 kn slower, fuel per mile down 10%; in line with the speed change.
2018→2019	−1.1 kn	−13%	−19%	−41%	−19%	1.1 kn slower, fuel per mile down 13%; in line with the speed change.

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	HACHIUMA STEAMSHIP CO.,LTD.	431	1,371	4,059	279	14.5	106	85.3	–
2024	HACHIUMA STEAMSHIP CO.,LTD.	1,262	3,934	12,165	754	16.1	104	–	–
2023	not published	1,378	4,349	15,883	1,055	15.1	86.8	153	–
2022	not published	3,570	11,282	34,124	2,138	16.0	105	45.5	–
2021	not published	2,111	6,672	21,280	1,490	14.3	99.2	62.3	–
2020	not published	1,207	3,814	12,894	869	14.8	93.6	61.5	–
2019	not published	937	2,933	8,997	574	15.7	104	54.3	–
2018	not published	1,816	5,670	15,139	899	16.8	120	67.5	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	HACHIUMA STEAMSHIP CO.,LTD.	85.3	55.4	+54%	379 of 506	ClassNK	C
2024	HACHIUMA STEAMSHIP CO.,LTD.	–	–	–	–	ClassNK	C
2023	not published	153	56.6	+169%	387 of 417	ClassNK	C
2022	not published	45.5	57.7	−21%	104 of 463	ClassNK	C
2021	not published	62.3	59.6	+5%	250 of 459	ClassNK	C
2020	not published	61.5	57.3	+7%	251 of 449	ClassNK	C
2019	not published	54.3	59.0	−8%	170 of 426	ClassNK	C
2018	not published	67.5	62.4	+8%	256 of 434	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's vehicle carrier ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.