I see that you can get conversion kits for around $800, like
"grease-car". But couldn't you do it for less? Couldn't you get a
junk yard 20 gal tank, put in the trunk, "southern engineer" a fuel
preheater with lines from the radiator? I guess teh fuel switch has to
be bought off-the shelf, but that wouldn't cost but 30 bucks or so,
right? Is there anything on-line showing how to do it without an
see: http://biodiesel.org /
Apparently no conversion is needed BUT know that 100% biodiesel acts as
a solvent and dissolves all the deposits etc. in your car's old fuel
tank. Soon you'll be changing its fuel filters. 20% bio doesn't have
By the way, I've been running B100 (100% biodiesel) in my '82 300SD and
the results have been great! The engine runs much smoother and
QUIETER, the exhaust smoke has lessened, and the smell is quite
different (no longer diesel). I change my fuel filters fairly
regularly. (More often than the suggested 30k mile interval).
I ran B20 (20% biodiesel) for a while, but did not experience quite the
results I have with the neat biodiesel. I only wish the government
would give a tax break on B100 so that it wouldn't be so costly! B100
is nearly *$1.00* more per gallon than B20, and B20 is about the same
price as regular diesel (#2) fuel (here in TN).
I'm debating brewing my own...
I have never seen the insside of a MBZ engine run extensively on SVO,
but what I did see on a 6V53T Detroit in a converted school bus
chassis was enough to put me off it forever. The engine had to be
pulled and hot tanked before anything else could be done-it was a total
overhaul, and with less than ten thousand miles (plus 200+ idle hours)
on the engine on SVO. The copper injector sleeves in both heads were
stuck so strongly to the injectors they gave up and sent them back as
Don't know what difference it would make but the Detroit diesel is a
two-cycle and not four-cycle as the MB. Also, the 53 series is going way
back and I'd question its condition before the switch to SVO (Say, did this
guy with the bus have long hair, a beard, talk with a slight slur, and act
happy all the time?).
You don't need to convert anything. You can drive it on new cooking oil (if you
can get it cheap) but of course it's better to use
the free stuff from restaurants, just filter it and use it, no need for
transesterification, which rids the oil of the glycerine and
turns it into what's called biodiesel.
The 53 Series engines are _still in production_, as are the 92's and
occasionally 71's. They came out with a 400 hp rated DDEC 6V53T just
two years ago for a military contract in fact. This was a engine that
was a low time industrial pull and re-configured for vehicle use, he
pulled the heads at that time, and they were clean then. The owner is
in fact a clean cut Pat Boone type...sorry.
Another individual has run a 2-71 on SVO high time with no issues, he
says....it could be he has a different stock of oil or may be running
the engine hotter.
On a Benz you could probably borescope the cylinders through the
injector or glow plug holes if you had a small enough scope head to see
if thing were going awry.
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