Fuel Consumption

When cruIsing, Murphy's law is always against you and you end up using the motor for about 75% of the time. So  fuel consumprion is important from a cost view and also engine wear issues. GR has a Yanmar, 4 cylinder, turbo-charged diesel engine ( type 4JH3-DTE) of which the table below details the fuel consumption. You can find the fuel consumption graphs ( L/hr  vs. rpm) for your particular engine on the internet.

We normally try to limit ENGINE speed to 2200 rpm which is easy on the engine and uses about 7 l/hr,  giving us about 150 hours of motoring.

 FUEL CONSUMPTION FOR GYPSEA ROVER

 

 ENGINE

SPEED

(RPM)

FUEL CONSUMPTION

(L/HR)

ENGINE POWER

(HP)

COMMENT

2000

5

60

 

2200

6.5

70

Cruising speed of about 7 kts with no wind or tide

2400

8

80

 

2600

10

85

 

2800

12

95

 

3000

13.5

105

 

3200

16

115

 

3600

22

125

Max. power

 

 

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