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Old 22 September 2005, 15:01   #1
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Fuel consumption

There has been a good deal of talk about fuel consumption in the past, especially petrol v diesel. I buy my diesel in bulk and today I'm in the position to know, pretty closely, how much fuel I've consumed to date. Just for info, I thought it might be interesting to some.

8.5mtr rib, on the water typical weight 3200kg, 285hp diesel engine, overall consumption 1.1lt/mile (statute) which is a tad better than 4mpg. This includes all the running the engine has done...flushing, sitting at the quayside etc.
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Old 22 September 2005, 16:58   #2
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Actually that isn't that good - the Quinquari humbers with 2x Evinrude 250s do about the same - the ONLY real advantages are the cost and availability of diesel - but they are BIG adavantages!!!
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Old 22 September 2005, 17:24   #3
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Thats good consumption for such a heavy boat, why not consider veg oil

once at 70 degrees it goes tro the diesel pump like diesel fuel

read articles here
http://www.dieselveg.com/

about .45 a litre
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Old 22 September 2005, 17:30   #4
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Quote:
Originally Posted by codprawn
Actually that isn't that good - the Quinquari humbers with 2x Evinrude 250s do about the same -
Feck' off....
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Old 22 September 2005, 17:44   #5
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Quote:
Originally Posted by codprawn
Actually that isn't that good - the Quinquari humbers with 2x Evinrude 250s do about the same - the ONLY real advantages are the cost and availability of diesel - but they are BIG adavantages!!!
is that each engine does the same economy or combined they do the same economy, i cant imagine two 250s would average 1 lit per mile unless they are strapped to a sib
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Old 22 September 2005, 18:02   #6
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In fairless to our esteemed Mr Codprawn, those are John Price's (Mr Quinquarimarine) own figures which he stated on RIB.net a little while ago, and are published in his article in the latest RIB International.

I have a feeling that there's a misunderstanding (perhaps these figures are PER ENGINE?) or is there a basic mathematical mistake? However, I've never run a 10m Humber with twin 250 Etecs, so my thoughts cannot be backed up with any evidence. JP is has stated that they are correct, and to disprove them, you would have to either inspect his acounts or work on one of his boat for a day.
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Old 22 September 2005, 18:54   #7
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Quote:
Originally Posted by gavin
... why not consider veg oil....
....about .45 a litre
Gavin, I'd need to be seriously green... that's about half as much again as diesel.

--------------------------
Cod, having run a Humber with 200hp, I'm with Jono. Also, remember this consumption is including the times the boat is not cruising, and, indeed, not even on the water.
-------------------------

As an extra bit of info, the figues tally almost exactly with the Volvo fuel curves for the engine. I was surprised.
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Old 22 September 2005, 22:04   #8
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Quote:
Originally Posted by Richard B
In fairless to our esteemed Mr Codprawn, those are John Price's (Mr Quinquarimarine) own figures which he stated on RIB.net a little while ago, and are published in his article in the latest RIB International.

I have a feeling that there's a misunderstanding (perhaps these figures are PER ENGINE?) or is there a basic mathematical mistake? However, I've never run a 10m Humber with twin 250 Etecs, so my thoughts cannot be backed up with any evidence. JP is has stated that they are correct, and to disprove them, you would have to either inspect his acounts or work on one of his boat for a day.
Exactly - I can't see why the hell John would lie about it - and he has a hell of a lot more experience than most - he really DOES know what he is talking about!!!

There is one of his boats in Swansea - they fill up from jerry cans so it can't be THAT thirsty - mine will probably need lots of trips to Tesco on a trailer!!!
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Old 23 September 2005, 03:22   #9
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Quote:
Originally Posted by Richard B
In fairless to our esteemed Mr Codprawn, those are John Price's (Mr Quinquarimarine) own figures which he stated on RIB.net a little while ago, and are published in his article in the latest RIB International.

I have a feeling that there's a misunderstanding (perhaps these figures are PER ENGINE?) or is there a basic mathematical mistake? However, I've never run a 10m Humber with twin 250 Etecs, so my thoughts cannot be backed up with any evidence. JP is has stated that they are correct, and to disprove them, you would have to either inspect his acounts or work on one of his boat for a day.

I'll bet you believe everything that you read in the papers too? I remember when the "Daily Star" first published with the story "Lancaster found on the moon"... I ain't gonna bother going to the moon to check that out either.......
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Old 23 September 2005, 04:56   #10
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"Lancaster found on the moon".
Didn't know Burt was an astronaut
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