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Thread: Winterizing Biodiesel

  1. #11
    Join Date
    Apr 2011
    Lismore NSW

    Re: Winterizing Biodiesel

    Quote Originally Posted by paultyndale View Post
    Thanks Bueff - is that heater all you needed to get the fuel flowing on a cold morning? Or did you need the extra tank as well? I would have thought heating the fuel in the fuel filter wont help if the fuel in the tank or the fuel line from the tank to the filter has solidified.

    Do you reckon 5 litres of diesel in a tank of BD is enough to stop the waxing?
    Well, if you fuel is solid, the only option in my opinion is a two tanks system with a heated secondary tank.
    The heater will prevent waxing in the filter, depending on your feedstock for your bio it may not get solid, bu as tony said, have a play around with blends and stick them in the freezer.
    1990 Toyota Hilux LN106 with ATG 2 tank system (sold after running 150.000 ks on mainly WVO)

    1993 Toyota 75 Series with 1 HDT conversion, 75l factory tank and a custom 170l under tray tank. (Retired with 680.000ks on the clock mostly running on BIO and on WVO)

    2006 Landcruiser Troopcarrier 1HZ with DTS Turbo Kit, 170ltr long range tank currently not converted, running on B100

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  2. #12
    Join Date
    Apr 2007

    Re: Winterizing Biodiesel

    I used to have problems in the winter with bio gelling but not since I changed the way I process my bio. I regularly have temperatures below zero and have not had any issues.
    First I always pre-wash with the glycerine from the last batch, and then caustic strip the WVO before processing with KOH. I have the bio in jars from years ago before I did this and they are all solid at the moment. My Bio I use now has not shown any signs of clouding, or gelling. The WVO I use has a high amount of fats in it can be difficult to get out of the drums this time of year.

  3. #13
    Join Date
    Mar 2013

    Re: Winterizing Biodiesel

    I went to visit a mate in the Snowy Mountains a couple of years ago and was concerned about biodiesel solidification, so I added 5% ULP to the tank when I hit Cooma. When I got up in the morning, my cubies in the back all had solidified fuel in them to some degree, but by mid-morning they had all 'thawed'. I then robbed my mate's motorbike jerry cans to dose up the cubies to approximately 5% and had no trouble all trip. I think there was frost on the ground each morning, but it wouldn't have been too far below 0.

    As others have said, keeping a transparent container of the fuel you are using outside gives a good indication of what is going on in the fuel system.
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    1976 Mercedes 300D Turbo 'The Coal Grenade' - B100 since May 2016 - SOLD
    1994 Peugeot 405 SRDT 1.9L intercooled turbo diesel (Shitbox Rally car.) - B100 since August 2019 - SOLD
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