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Conference vicki::boats

Title:Powerboats
Notice:Introductions 2 /Classifieds 3 / '97 Ski Season 1267
Moderator:KWLITY::SUTER
Created:Thu May 12 1988
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1275
Total number of notes:18109

969.0. "Fuel consumption: Outboard VS I/O" by MQOSWS::M_CHEVRIER (Michel A. Chevrier 632-3707 Montr�al) Mon Apr 27 1992 16:48

I tried to find a discussion on the topic and was not
successful.

All things being equal from what type do one
gets better fuel consuption?

Michel
T.RTitleUserPersonal
Name
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969.1Fuel is a relatively minor cost when you count up EVERYTHING !HYDRA::BURGESSMon Apr 27 1992 18:0024
re  <<< Note 969.0 by MQOSWS::M_CHEVRIER "Michel A. Chevrier 632-3707 Montr�al" >>>
>                     -< Fuel consumption: Outboard VS I/O >-


> All things being equal from what type do one
> gets better fuel consuption?

	From best to worst...

	Sail  (-:

	Electric trolling motor

	Diesel

	4 stroke 	(Inboard)

	4 stroke	(I/O)

	2 stroke	(Outboard)


	Bigger (-:

969.2UNIFIX::BERENSAlan BerensMon Apr 27 1992 18:234
I once made a 180 mile passage using only 0.05 gallons of diesel fuel. 
Sailing, of course.

:-)
969.3Not in Canada, more specifically in Qu�becMQOSWS::M_CHEVRIERMichel A. Chevrier 632-3707 Montr�alMon Apr 27 1992 18:406
Fuel being very close to double the price of what 
it is in the US.

Thanks

Michel.
969.4stale old joke :-)TOOK::SWISTJim Swist LKG2-2/T2 DTN 226-7102Tue Apr 28 1992 09:305
    Like he said.
    
    I have a late-model Johnson 115 (V4) O/B.  It will pass anything 
    but the fuel dock.
    
969.5200hp Evinrude VS 260hp MercruiserGENRAL::CBROWNTue Apr 28 1992 09:4316
    
    
    	My brotherinlaw has a 200 Fourwinns with a 200 hp Evinrude on it. I
    have a 190 Sea Ray with a 260 hp  Mercruiser. Both boats are about the
    same waterline and weight real close to the same. Both boats also seem
    to perform about the same. He pulls me out of the hole for just a
    couple seconds and than I slowly catch up and just creep away. It seems 
    that I get much better gas mileage than he does. He has a 45 gal tank and 
    I have a 44 and when he is close to empty I still have over a 1/4 tank 
    left.
    
    Hope this helps a bit
    
    Craig
    
    
969.6MPGSALEM::GILMANTue Apr 28 1992 09:597
    I get far better MPG with my 78 Johnson 25 HP than I did with my 35 HP
    1968 Mercury.  Both engines are on the same SIZE boat... but the 
    wooden boat with the 25 not only gets better mileage with a smaller
    engine but goes 5 knots FASTER too.  I suppose the boats weight ABOUT
    the same 800 lbs or so.
    
    Jeff
969.7Fuel i/o vs obWEFXEM::HOWELLMon May 04 1992 07:5212
    To ans. your questions alot of comparison need to be done but assuming
    that all is equal in most cases for now you will see more efficient
    fuel consumption from a i/o because it is a 4 cycle engine as a
    outboard is in most cases a 2 cycle but they do have 4 cycle outboards
    and they are quite expensive but so are i/o.The cost of operation
    should also consider the maintence as well as fuel.I have had both and
    i found after the initial purchase the i/o has been less cost to
    operate.The fuel cost for 2 cycle must also consider the constant
    buying of 2cycle oil where as the 4 cycle usualy goes the season on 5
    quarts and a filter.I hope this is of some help you will find that alot
    of this is a big trade off and you need to determine what your needs
    are before buying.
969.8New outboards are a lot more efficient than those a few years agoBAJA::THORSTEDIn search of smooth water...Tue May 05 1992 10:527
My old Chrysler 140 outboard was a real gas gussler, but my 1985 Mariner 150 did
considerably better on gas (and power/speed) than my friend's I/O, including the 
price of the oil.  I might mention that it also did a lot better than my current
285 hp Inboard in MPG and speed, but as you would expect, not in the power 
catagory.

/wayne