[AT] Was:tractor shopping NOW:fuel

[Chuck Saunders]

Leaks that stop once warm tend to point to seals that have lost their
resiliency. Biodiesel is a very good solvent and will clean out any gunk
that may have been bridging the gap. I think (but don't know) that biodiesel
has a higher cloud point and therefore will gell sooner that dino diesel.
Chuck Saunders

On Wed, Feb 25, 2009 at 9:33 AM, Brad Gunnells <brad-gunnells at uiowa.edu>wrote:

> Speaking of the new fuel requirements. How does biodiesel fit into
> the picture? Does using it as an additive (filler) help in sulfur
> reductions etc?
>
> The reason I ask is that I filled up last night and they only have B2
> (2% biodiesel blend) where I fueled up. I noticed the sticker about
> the 2007 emissions on the pump and the B2 sticker and it got me
> wondering (and now this topic).
>
> Before fuel prices skyrocketed last summer I was buying a lot of
> biodiesel from the local co-op. I was really pleased with the
> performance, and the fact you could walk past the tailpipe and not
> gag on the fumes was a great plus. It's supposed to have good
> lubrication properties which should be a plus as it seems the new
> mandated blends are getting more additives to replace properties that
> are refined out.
>
> The only drawbacks I had from running the biodiesel (anywhere from 5%
> in the winter to 100% in the summer) was that I needed a couple of
> filter changes as they plugged which was a known possibility. This
> was on an 02 Ford. I also ran some in the 2640 Deere (tractor
> reference) with good results. However, now that one has developed a
> drip from the fuel shutoff control. I'm not sure if the seal didn't
> like the biodiesel or if it cleaned out some residue that kept it
> from leaking.......or the fact it's 25 years old and maybe it was
> just it's time. It drips when it's first started but will stop after
> the engine warms.
>
> Brad
>
> On Feb 25, 2009, at 9:04 AM, Dick Day wrote:
>
> > One of my clients is a tanker company who hauls mostly fuel.  Even
> > they have
> > had problems with diesel gel. They told me that because of the lower
> > emissions requirements, that this new "low sulfur" fuel is
> > susceptible to
> > gelling issues.
> >
> >
>
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