Re: which type of oil for a 2005 C230?



On Apr 15, 2:06 am, Cordy <stefano.cord...@xxxxxxxxxx> wrote:
Il Thu, 14 Apr 2011 09:18:32 -0700, runbiodiesel ha scritto:

Since the subject of particulates came up I wanted to add that burning
biodiesel or straight vegetable oil reduces particulates significantly
-- even at a fairly low ratio if you burn a mixture. It's also sulphur
free and carbon neutral (i.e the only carbon released is that
sequestered from the atmosphere by plants in the first place). The
higher lubricity also lengthens engine life. Rudolph Diesel ran his
prototype engine on peanut oil but oil companies were able to produce
diesel much cheaper. Today, in California, I now pay less for biodiesel
delivered to my house than for diesel at the pump!

The key question on biodiesel is: how much of the land we use now to
produce food, can be converted to fuel production? Not enough, imho.


No land use issue for me. I burn bodiesel made from waste veggie oil.
I buy from a company that picks up the oil from over 400 restaurants.
It used to be a waste problem for restaurants and an expense, now they
sell it!

And... I'd like to contraddict Tiger, once in a million times! I know that
some older diesel engines suffer biodiesel. The rubber used in pipes, o-
rings (in the filter, but especially in the injection pump) are not
compatible with some substances contained in biodiesel and in oil derived
from seeds. That's a VERY expensive experience...

I run two older Mercedes Benz diesels, '79 240D and '82 300TD. The 300
has burned 100% biodiesel (except for an occasional addition of diesel
when it gets really cold) for seven years. I did have to replace the
rubber fuel lines made of rubber with neoprene (easy job) and the fuel
filler neck gasket too. Otherwise no issues with the engine, or fuel
system at all. I know a lot of the folks who buy their biodiesel where
I do as well and they all run B100 in their various diesels, including
many older MBs. Very few problems related to the fuel. Tiger is right
though, mileage does suffer a bit at 100% but i've measured it both
ways and it's not too signifcant.

AFAIK especially Bosch systems manufactured before 1990 are totally
incompatible and pumps are completely worn out in less than 25.000 km.

Moreover, oler diesel engines suffer the so-called premium diesel fuel,
because it's less lubricating (contains less sulphur): some repair shops
suggest to add some engine oil in the injection pump (if there's a refill
cap) or directly with the fuel. 0.5 % mix is the suggestion I heard.
I tend to use less expensive diesel fuel, instead... I presume the
overall balance is still positive, in terms of emissions...

I don't know about premium diesel fuel (never heard of it) but
biodiesel has much higher lubricity than diesel and no sulphur (so no
sulphur dioxide emissions). It's far better than diesel as a
lubricant. Also, I know so many people running 80s to newer MB diesels
on biodiesel. The problems you mentioned just don't exist with any
frequency in these cars. There are lots of forums and boards where you
can ask people who use the stuff questions if you're interested.

I admit, I chose to opt out of using diesel because it burns cleaner
and I didn't want to support wars for oil. But I'm practical and if it
were a hassle or causing expensive repairs I'd probably change my
mind. :) I couldn't be happier with the choice. If I had the time,
I'd probably make my own like some of the hippies around here do. LOL
--
Ciao!

Stefano

.

Relevant Pages

  • How to make home bio fuel using cooking oil
    ... Anybody can make biodiesel. ... -- and it's BETTER than the petro-diesel fuel the big oil companies ... If you make it from used cooking oil it's not only ... Biodiesel or SVO? ...
    (soc.culture.filipino)
  • Re: Retiring A Truck
    ... fuel, and for beating the costs of fuel, it's very hard to beat free waste ... oil car. ... any regular diesel to start the engine. ... Biodiesel seems like too much work for too little gain to me. ...
    (rec.woodworking)
  • Re: Bio Diesle Co-op being formed here abouts.
    ... Hell even Diesel fuel will jell up here if not treated. ... I began on SVO when I was brewing biodiesel and wondering whyour cooking oil stayed liquid stillin the fridge ... ... If I could get cooking oil in quantity I wouldnt have to brew bio diesel since the only reason to process it is to keep it liquid. ... We are going to use Ethyl Alcohol C2H5OH made from the distillation starches and sugars in vegetable mater. ...
    (misc.survivalism)
  • Re: Accord Diesel
    ... suspect that they are prohibitively strict...otherwise, we'd already have a lot more diesel powered cars over here. ... Our problem is the fuel. ... Bottom line, our government, our oil industry, our auto industry, and ... Biodiesel is becoming more popular and available in North America - ...
    (rec.autos.makers.honda)
  • Why BioDiesel and Not Hydrogen Cars...
    ... Widescale Biodiesel Production from Algae ... dependent on a fuel that can only be purchased from tyrants. ... petroleum diesel and 120 billion gallons of gasoline. ...
    (sci.energy.hydrogen)