bio fuel help need advice

Forum: 

im looking at runing my fourtrack on veg oil and some deisel what would i have to do to the oil befor usesing it can you buy special filters and what can i do so it dont damage my enigen

whole section on the site about it

mix with diesel, chuck it in.

Full of ideas but no time to do them!!

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youtube: Redfourtrack

petrol

I run my fourtrak on straight veg oil with 5% petrol mixed in. I do have a inline heater i got off ebay which cost £25 and about half an hour to fit.

My experience

From my experience:
It'll run on new, fresh veg oil upto 50/50 ratio with diesel with no mods, BUT it'll run really rough until it warms up a bit. Also, I would NOT use any veg oil when the temp goes below about 5C, without any additional oil heaters - much better to save the veg oil for the warmer months.
Be prepared for the veg oil to 'clean' the fuel line & tank - carry a spare fuel filter, and know how to replace them! A symptom of a blocking fuel filter is a reduction of the top speed - in my case it dropped to 25mph!
Also note that the MPG will get worse.
DO NOT use above about 50/50 ratio without any additional oil heaters - the oil is too viscous.

In my opinion, with the cold weather, expensive veg oil prices and reduced MPG, I wouldn't bother, unless you have access to very cheap / free oil (maybe old fish'n'chip shop used veg oil - but that really needs some filtering / chemical processing).

As a side comment, I'm not so sure it's ethically good to use a food stuff as a fuel (unless you of course are using USED veg oil).

1985 Veg oil burning Fourtrak "Rocky".