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Author	Topic:   Fuel Consumption Rate
selz	posted 10-27-2006 07:24 AM ET (US)         I have just purchased a 13' sport with the mercury 40hp motor. I would like to find out how the consumption of gas will be used running at 3000-35000rmps? I have a 6.5 tank. thanks for any and all help.
jimh	posted 10-27-2006 08:58 AM ET (US)             Your motor will burn about 4-gallons per hour (GPH) at full throttle, and proportionately less at lower throttle settings. For a general solution to questions like this, see Brake Specific Fuel Consumption http://continuouswave.com/ubb/Forum4/HTML/004149.html
The Judge	posted 10-27-2006 12:30 PM ET (US)             Running a 40 evinrude I will say that 3k is barely on plane so 35-3800 seems like the most economical cruise and motor seems happy. Again this is an Evinrude 2 stroke. At that speed I burn about 2gph. If you have a 4 stroke you will burn probably about 1.5. I can run about 3 hours at cruise on a 6.5 tank.
jimh	posted 10-27-2006 08:34 PM ET (US)             I should have mentioned initially that at "35000rmps" the motor will probably burn more than 4-GPH, but not for very long.
jgkmmoore	posted 10-28-2006 12:49 AM ET (US)             Please define 'rmps'......................are 35000 good or bad?
kingfish	posted 10-28-2006 12:56 AM ET (US)             Breeding those moles must teach you to read pretty carefully - inquiring minds *do* want to know...

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