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Fuel Consumption: Merc 496HO vs. Merc 525

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Old 10-22-2007 | 11:56 AM
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Default Fuel Consumption: Merc 496HO vs. Merc 525

Anyone know the tech info on this? Wondering how much difference there is at various RPMs.

Thanks!
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Old 10-22-2007 | 12:45 PM
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Ok me and my friend have the same boat ( Sunsation 288 ) same hull , but differente motor Ho vs 525 ....and at our summer trip we made around 600 miles in 8 days ( at average speed 38 mph ) ....and the difference in consumption is 15 % more for me .....
hope that help
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Old 10-22-2007 | 01:24 PM
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Don't do it
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Old 10-22-2007 | 02:22 PM
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Originally Posted by 25 hors la loi
Ok me and my friend have the same boat ( Sunsation 288 ) same hull , but differente motor Ho vs 525 ....and at our summer trip we made around 600 miles in 8 days ( at average speed 38 mph ) ....and the difference in consumption is 15 % more for me .....
hope that help
Which one did you have?

Michael
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Old 10-22-2007 | 02:33 PM
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Originally Posted by Michael1
Which one did you have?

Michael
YUP.....My guess would be he has the 525 but who know...we have seen about a 8% difference between the two the HO being the better economically.
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Old 10-22-2007 | 02:40 PM
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Originally Posted by Michael1
Which one did you have?

Michael
Look my Avatar ..... 15 % more fuel .....but its worth the money ... ....
Attached Thumbnails Fuel Consumption:  Merc 496HO vs. Merc 525-p11206001-large-.jpg   Fuel Consumption:  Merc 496HO vs. Merc 525-p1180267-large-.jpg  
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Old 10-22-2007 | 02:41 PM
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Originally Posted by Michael1
Which one did you have?

Michael

There is a pic of a 525 in his avatar, so if I were a betting man, and I am , I'd say the 525 is 15% more thirsty on a 288 Sunsation.

Last edited by bluellama; 10-22-2007 at 02:47 PM.
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Old 10-22-2007 | 04:54 PM
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The real sticking point comes it hull effeciency. If you only compare fuel flow at X rpm the results are skewed. For instance my boat wallows by comparison at 3000 but at 3200 it feels loose and wants to run. This of course depends on tab setting. One power package may look very economical at 3000 and another not so good. But how many RPM do I need to turn to get to the speed the hull free's up if I am running a lesser motor with smaller pitch prop?
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Old 10-22-2007 | 05:12 PM
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100hp more than a 496HO at 15% more fuel consumption sounds reasonable to me.
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Old 10-22-2007 | 06:41 PM
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If fuel consumption is a concern, this is definetely the wrong sport for you. I still say gas is the cheapest thing I ever put in a boat.
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