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Old 20 August 2006, 16:15   #1
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Fuel Consumption

At the risk of starting a war.

Would a 135 HP Optimax have worse fuel consumption than a 4 stroke of the same HP ?
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Old 20 August 2006, 16:51   #2
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About the same I reckon.

As long as you keep an Optimax below 4000rpm they are great on fuel.
I get about one mile per litre up to about 28/30 knots.
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Old 21 August 2006, 21:24   #3
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Hi nick

I've justmanaged to convert Ben from 4 strokes to 2 strokes Ask Him.

I don't think theres much in it at all
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Old 22 August 2006, 04:04   #4
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I went for bigger engines than before, but at 40 knots, im saving money, 30 knots is about the same... I wouldnt say the "new technology" two strokes are any thirstier than the equivilent 4/stroke.

They do smell a bit more though
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Old 22 August 2006, 05:41   #5
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I love the smell of 2 stroke in the morning
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Old 22 August 2006, 06:08   #6
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I love the smell of 2 stroke in the morning

It shure does something to you.. dont know exactly what?. smells more professional

Jonathan
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Old 22 August 2006, 17:16   #7
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Quote:
Originally Posted by Searider
As long as you keep an Optimax below 4000rpm they are great on fuel.
I get about one mile per litre up to about 28/30 knots.

28 l/hour? Blimey, I know that the 115 on a Leeway 600 is averaging 10l/hour and my Evinrude (ficht) DI 115 on the same boat is doing the same.
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Old 23 August 2006, 03:22   #8
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28 l/hour? Blimey, I know that the 115 on a Leeway 600 is averaging 10l/hour and
At what sort of speed though and therefore what would the mpg for the Evinrude be ?

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Old 23 August 2006, 04:14   #9
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28 l/hour? Blimey, I know that the 115 on a Leeway 600 is averaging 10l/hour and my Evinrude (ficht) DI 115 on the same boat is doing the same.
Judging by the whiff of fumes in the air from the one parked up at Clarence, I am guessing that 10l/hour is when its on a trailer??
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Old 23 August 2006, 04:17   #10
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My boat at the moment, is using 15l/hour at 6 knots , think it was about 10-12 before with the twin 115's
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