MerCruiser fuel consumption chart


*G = US Gallons per Hour / RPM

Select MerCruiser Test Model

HP

Fuel consumption WOT

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MerCruiser 3.0 MPI/TKS - 181 cid 135 hp 10.5 GPH
MerCruiser 4.3 TKS - 262 cid 190 hp 16.0 GPH
MerCruiser 4.3 MPI - 262 cid 220 hp 18.0 GPH
MerCruiser 4.5 MPI - V6 250 hp 19.7 GPH
MerCruiser 5.0 TKS - 305 cid 220 hp 18.2 GPH
MerCruiser 5.0 MPI - 305 cid 260 hp 18.5 GPH
MerCruiser 5.7 L - 350 cid 260 hp 21.0 GPH
MerCruiser 5.7 MAG - 350 cid 300 hp 23.0 GPH
MerCruiser 6.2 MAG - 377 cid 320 hp 24.5 GPH
MerCruiser 7.4 MPI - 454 cid 310 hp 28.5 GPH
MerCruiser 8.1 MAG - 496 cid 375 hp 30.5 GPH
MerCruiser 8.1 HO - 496 cid 425 hp 33.5 GPH
MerCruiser 8.2 MAG - 502 cid 380 hp 31.0 GPH
MerCruiser 8.2 HO - 502 cid 430 hp 37.5 GPH



Factors such as propeller pitch, weight, hull / water conditions, etc. may affect the consumption figures.


Fuel Consumption Chart - GPH

HP

Idle

1000

1500

2000

2500

3000

3500

4000

4500

WOT

MerCruiser 3.0 MPI/TKS

135 hp 0.50 1.00 1.50 2.90 3.80 4.80 6.20 7.40 9.30 10.5 GPH

MerCruiser 4.3

190 hp 0.60 1.10 2.50 3.90 5.00 6.10 7.50 10.5 14.5 16.0 GPH

MerCruiser 4.3 MPI

220 hp 0.60 1.20 2.50 4.00 4.50 6.00 8.50 12.0 16.0 18.0 GPH

MerCruiser 4.5 MPI V6

250 hp 0.70 1.30 2.20 4.00 5.90 6.60 8.10 10.1 14.6 19.7 GPH

MerCruiser 5.0

220 hp 0.80 1.50 2.80 4.90 6.60 8.10 9.40 11.5 16.3 18.2 GPH

MerCruiser 5.0 MPI

260 hp 0.90 1.40 2.50 4.50 6.00 7.90 10.0 12.5 16.0 18.5 GPH

MerCruiser 5.7 / 350

260 hp 1.00 1.40 2.50 4.50 6.60 8.70 9.80 12.5 17.2 21.0 GPH

MerCruiser 350 MAG MPI / 5.7

300 hp 1.00 1.50 2.50 4.50 6.00 7.50 10.0 12.5 16.5 23.0 GPH

MerCruiser 6.2 MPI / 377 MAG

320 hp 1.10 2.00 3.00 4.50 7.00 9.00 11.5 14.0 18.0 24.5 GPH

MerCruiser 7.4 MPI / 454 MPI

310 hp 1.30 2.50 3.50 6.10 9.90 12.5 17.4 22.0 28.5 28.5 GPH

MerCruiser 8.1 MAG / 496 MAG

375 hp 1.20 2.30 3.50 5.50 8.00 11.5 15.0 20.5 27.5 30.5 GPH

MerCruiser 8.1 HO / 496 HO

425 hp 1.20 2.60 4.50 6.00 8.00 11.5 16.0 21.5 28.5 33.5 GPH

MerCruiser 8.2 MAG / 502 MAG

380 hp 1.20 2.30 4.00 7.00 8.50 11.0 14.5 19.5 27.0 31.0 GPH

MerCruiser 8.2 HO / 502 HO

430 hp 1.20 2.50 4.00 7.50 9.50 12.5 17.0 21.5 29.0 37.5 GPH