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Old 16-06-2013, 14:06   #1
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pirate DIESELS VS BIOFUEL

I just purchased a trawler and thinking about converting it to burn vegetable oil, do any of y'all have any ideas and input
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Old 17-06-2013, 06:10   #2
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Re: DIESELS VS BIOFUEL

Dont do it Dale. Although you can get the engine to work on bio diesel quite well, it will give you lots of trouble in the long run. The reason is that biodiesel doesn't store well and will gum up your fuel system if you dont use the engine all the time. and replace the fuel regularily. Some years ago both Beta Marine and Yanmar issued statements to the effect that you can use biodiesel in their engines up to a maximum of 5%.
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Old 17-06-2013, 06:57   #3
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Re: DIESELS VS BIOFUEL

Biodiesel and vegetable oil are two different things.

Biodiesel is processed by a technique known as transesterification.
vegetable oil is merely that, filtered.

Any advice offered by anyone not knowing the difference is likely suspect. A Google search will garner all sorts of information, and it is up to you to sift through it.



That said... Since the OP mentions burning vegetable oil...

My first consideration would be availability. It's not that easy getting "grease" on the mainland (restaurants?) I can't imagine trying to source it at sea, and less so in the Carib.
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Old 17-06-2013, 14:12   #4
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Re: DIESELS VS BIOFUEL

Most fast food places lock thier grease bins because they get paid by the company picking up the oil. 20 yrs ago, they would have been happy for you to steal it.

Unless you have a source, it's not worth pursuing. Even then, if you are asking, it's probably not worth pursuing.
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Old 17-06-2013, 14:33   #5
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While you could certainly do it, you would have to deal with the availability issue previous posters mentioned, plus seperate tanks, preheaters, etc. if you're handy and don't mind being dead in the water fixing things at anchor or dock, go ahead. You would have to be a real enthusiast to make it work I think. If you have a restaurant, and it makes sense not to sell it, that's another story! Still with barrels/tanks of oil, you will have a bit of a mess on your hands.

As far as biodiesel goes, I don't burn in in my boat but I burn a ton of it at the farm. I've had to change fuel lines in my truck and older combine, and I've got a bunch of late model green tractors that tolerate it fine. I never let it sit for any amount of time, as it is hydrophilic and also eats at any natural rubber in the fuel system. Seems like a bad fit for a boat and you won't find it on the fuel docks anyway.
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Old 17-06-2013, 14:44   #6
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Re: DIESELS VS BIOFUEL

Using an organic-rich fuel in a marine setting sounds like a problem.
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Old 17-06-2013, 15:25   #7
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Re: DIESELS VS BIOFUEL

Tanks guys for your input, as all points of view on a subject are to be considered.
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