Navalyze · Vehicle carrier · Ship

MICHIGAN HIGHWAY

IMO: 9339832
Type: Vehicle carrier
Average cargo carried: 6,688 t
Flag (estimated): Japan (from the 2024 report)
Technical efficiency: EEXI 14.10 g CO₂/t·nm

ISM company (DoC holder) in 2025: "K" Line RoRo Bulk Ship Management Co., Ltd. · part of K Line

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 5,701 t of cargo on average.

Fuel kg/nm

107

Vehicle carrier median 104 kg/nm (+3%)

CO₂ per transport work (cargo)

59.0

g CO₂/t·nm · Vehicle carrier median 62.4 (−5%)

Average speed

14.3 kn

Vehicle carrier median 14.7 kn (−3%)

Fuel per day at sea

36.8 t/day

Fuel consumed

1,181 t

CO₂ emitted

3,702 t

Distance sailed

11,015 nm

CO₂ ÷ CO₂ per mile

Time at sea

770 h

32 days, 9% 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 114 kg/nm · median 99.9 (+14%)

79.6Ranks 424 of 506, lowest first119

Average speedThis ship 15.8 kn · median 14.4 (+10%)

12.0Faster than 86% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 53.2 g CO₂/t·nm · median 55.4 (−4%)

34.7Ranks 233 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2018

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 ports36%
From the EU47%
Into the EU11%
At berth in the EU7%

Fuel burned laden

–

Not reported

CO₂ at berth

242 t

6.6% 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

MICHIGAN HIGHWAY
Vehicle carrier median

95.0100.0105.0110.0115.0

’182018’212021’222022’232023’242024’252025

Average speed, kn

MICHIGAN HIGHWAY
Vehicle carrier median

14.014.515.015.516.016.5

’182018’212021’222022’232023’242024’252025

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

MICHIGAN HIGHWAY
Vehicle carrier median

40.045.050.055.060.065.0

’182018’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−0.4 kn	+8%	+5%	−77%	–	0.4 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	+0.9 kn	+3%	+9%	+125%	–	0.9 kn faster, fuel per mile up 3%; better than speed alone explains (hull, engine or trade).
2022→2023	+0.4 kn	−5%	−2%	−47%	−8%	0.4 kn faster, fuel per mile down 5%; better than speed alone explains (hull, engine or trade).
2021→2022	+0.3 kn	+7%	+9%	+6%	−20%	0.3 kn faster, fuel per mile up 7%; in line with the speed change.
2018→2021	+0.3 kn	−7%	−5%	+393%	+2%	Same speed, fuel per mile down 7%; better than speed alone explains (hull, engine or trade).

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	"K" Line RoRo Bulk Ship Management Co., Ltd.	1,804	5,653	15,882	1,007	15.8	114	53.2	–
2024	"K" Line RoRo Bulk Ship Management Co., Ltd.	7,284	22,743	69,241	4,276	16.2	105	–	–
2023	not published	3,144	9,841	30,822	2,014	15.3	102	44.2	–
2022	not published	6,191	19,544	57,781	3,884	14.9	107	48.2	–
2021	not published	5,414	17,098	54,274	3,711	14.6	99.8	60.3	–
2018	not published	1,181	3,702	11,015	770	14.3	107	59.0	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	"K" Line RoRo Bulk Ship Management Co., Ltd.	53.2	55.4	−4%	233 of 506	ClassNK	B+C
2024	"K" Line RoRo Bulk Ship Management Co., Ltd.	–	–	–	–	ClassNK	C
2023	not published	44.2	56.6	−22%	86 of 417	ClassNK	C
2022	not published	48.2	57.7	−16%	138 of 463	ClassNK	C
2021	not published	60.3	59.6	+1%	233 of 459	ClassNK	C
2018	not published	59.0	62.4	−5%	181 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.