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  1. #1
    Gold Member
    Join Date
    Oct 2007
    Posts
    434
    Location
    NH, USA
    Tractor
    Kubota B2320 DT (Gear)

    Default How many folks here run BioDiesel

    In a follow on to the "do you use a mask thread"

    How many folks here run BioDiesel in their bota?

    Which one?

    What Season?

    How Long you been running it?

    Thanks

    Sounds like this could help with toxicity of the fumes.

    I don't run my tractor in the winter so this could be a good match for me.
    Kubota B2320 DT (Gear), LA304 FEL, Woods 48" Box Blade

  2. #2
    Gold Member
    Join Date
    Oct 2007
    Posts
    434
    Location
    NH, USA
    Tractor
    Kubota B2320 DT (Gear)

    Default Re: How many folks here run BioDiesel

    Anyone know the highest % Bio you can safely run?

    Messicks says B10 is fine.
    Kubota B2320 DT (Gear), LA304 FEL, Woods 48" Box Blade

  3. #3
    Elite Member
    Parts Supplier
    MessickFarmEqu's Avatar
    Join Date
    Feb 2004
    Posts
    4,853
    Location
    Lancaster County, PA

    Default Re: How many folks here run BioDiesel

    Quote Originally Posted by mswlogo View Post
    Messicks says B10 is fine.
    uh... kubota says B5 is fine... so thats the offical company line. B10 has never blown anything up for us... but don't come calling me if it does for you.

  4. #4
    Silver Member red4now's Avatar
    Join Date
    Jan 2005
    Posts
    236
    Location
    Southern Ontario
    Tractor
    Kubota

    Default Re: How many folks here run BioDiesel

    Engine manufactures generally warrant B5 across the board and some are moving even higher. Theoretically you should be able to run B100 in any diesel - if - and it is a big if the Bio-diesel meets and / or exceeds ASTM standards as opposed Joe's Backyard Bio Works (apologies to any possibles businesses that do have this name) Yes there have been instances where some rubber seals in older engines have leaked, filters have plugged and of course lets not forget temperature challenges - especially with animal fat and soya based products - especially in the northern states and Canada - cold pour point of only + 2 vs -14 degrees C for lets say Canola products for example, but the diesel engine was designed originally to run "green" fuels. And of course the bio-diesels provide additional cleaning and lubrication products that the engines love since sulphur continues to be removed (which is good - much like lead was removed from gasoline) and the quality of today's fuels varies from brand to brand. If your tractor is under warranty, be best to stick with a ASTM B5 level. Up here in Canada, not as easy to get bio-diesel in a lot of areas so I run a "green" concentrated bio-diesel additive which equates to a 0.1% therefore I can run it all year around and it does not affect warranty since it is just concentrated bio-diesel with nothing else added. I use it to increase the quality of the fuel and it also cleans and lubricates the fuel system / cylinders. Does it help with the fumes - probably not like a B5 or higher would since the concentration is so low but the diesel engines that we have run more efficiently therefore less fumes / smoke / start better / etc in that sense.
    For personal use a Kubota B3030 (was a B3200) - MMM, 64" RM Kubota snowblower with hyd chute, FEL with QA, 60" LM bucket and HLA pallet fork for the work (did I say work? ;-) around the place and the business has a Kubota M7040 and a M8540 both with FEL - QA and custom HLA bucket and bale spears for the "real" work everyday 365 days a year.

  5. #5
    Veteran Member GeneD14's Avatar
    Join Date
    Jul 2003
    Posts
    1,301
    Location
    Southern Indiana
    Tractor
    Kubota M95s, Allis Chalmers 185 & D17 series IV, Kubota ZG-23 Mower, Kawasaki Mule 610

    Default Re: How many folks here run BioDiesel

    I've been running the local Co-op brand of bio diesel in my Kubotas for 3 years now with no problem.

  6. #6
    New Member
    Join Date
    Apr 2009
    Posts
    18
    Location
    Eastern Massachusetts
    Tractor
    B7800

    Default Re: How many folks here run BioDiesel

    I've been running home brew biodiesel in basically a straight B100 mix in a single cylinder diesel I have fitted to my Troy Bilt tiller going on 5 years now with no problems. I have another such engine on my rebuilt 1974 Ariens walk behind snow thrower that's been running home brew also going on 5 years now. No problems there either and that one is pull start only, living in an unheated garage. I do keep some biodiesel in the house, however, to have something to pour in to avoid a jelled fuel filter if I'm expecting a big snow dump. 'Never had a problem with either machine regarding fuel.

    Our 2005 RTV 900 has gotten a few tanks here and there of the same home brew along with some commercial B100, but I've learned to quit feeding it biodiesel beyond October as the RTV has a fairly small fuel filter that objects pretty quickly to any cloudiness in the fuel. In fact, the 21 (?) hp RTV engine's filter is about the same size as the filter on the 10HP snow thrower engine, so there's little tolerance for cold biodiesel in the RTV as it is running a pretty small filter relative to its engine size.

    The 2008 B7800 has had several tankfuls of B100 mixed into whatever dino diesel already in the tractor tank with no problems, even in the unheated winter storage shed last winter, but the 7800 has a fairly decent-sized fuel filter and the tank, being behind the engine, benefits from some heat fairly soon after start up.

    I'm not sure but I think the 7800 has a fuel return line to the tank and because of that, some engine and fuel pump heat is returned to the tank possibly helping guard against fuel filter gel ups as well. I know the two single cylinder engines on the tiller and snow thrower have fuel return lines to their tanks and the fan blows air off of those cylinder heads and onto the tanks, adding more heat. The RTV, on the other hand, doesn't seem to have a return-to-tank fuel line, though I've never looked or had occasion to work on that machine's fuel system, so I could be wrong. In any case, the way the RTV is set up, its fuel stays pretty cold in the winter and, when combined with the small fuel filter as I said before, its the one machine that doesn't like biodiesel and that's only in the winter.

    As for the quality of my home brew, it's never been tested, but I'm very meticulous when washing the biodiesel. I also dry and settle it very thoroughly, giving it a careful visual look over before dispensing it into the storage tank. Most of my feedstock is lightly used soybean and canola oil from the residential school I work at.

    I don't think biodiesel is going to save the world, but I find that all of these engines have a much less irritating exhaust when running anything beyond B25 or so. I don't stand there inhaling the stuff, dreaming of french fries as some biodiesel fanatics seem to do, but I do breathe better around biodiesel powered machinery than when running dino diesel, so if I happen across some used veggie oil, I'll convert it to biodiesel. Ditto if I happen to be around one of the few Boston area stations carrying B100 too. (For Boston area folk, that would be Bursaw Oil in Acton.)
    Kubota B7800, LA402 loader, FL1271C tiller, homemade ballast barrel w/tool holster, RTV900 w/plow

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