Used motor oil contains metals, including dangerous
heavy metals. Because of the presence of heavy metal
contaminants there are often restrictions on the
burning of WMO in residential heating systems in
countries that have air quality regulations.
"Filtering" of waste motor oil, I hope, would include a
away to remove the metals, before recycling it.
While non-synthetic motor oil does experience thermal
breakdown, synthetic motor oil does not. Is recycling
only done on synthetic motor oil?
Notes:
-Samples of used motor oil can be analysed. The
presence/concentrations of metal contaminants can help
determine wear to specific engine parts. This can be
useful to companies, ex. bus companies, that have
fleets of vehicles, in determining maintenance
schedules and replacement of parts.
-The company that delivers methanol to me provides this
service (analysis of used motor oil). Their
representative explained to me that motor oil contains
additives including cleansers that effectively bind
microparticles ("soot") together so the filter(s) are
better able to remove them. In the case of synthetic
motor oil the oil itself is still good, and the reason
to change the oil is that the "cleansers" have been
removed. The difference between synthetic motor oils
that must be changed every 8 or 9 thousand miles and
those newer ones that are good for 15,000 miles is the
amount of additives put in. There are filters available
that can accomodate the increased "stuff" filtered from
the newer, higher mileage synthetic oils.
-These additives and filters do not remove the metals,
including dangerous heavy metal, that contaminate the
oil. If they did, analysis for them in the oil would be
of little diagnostic value.
Tom
> Hi Zeke
>
> Is filtering all that's required? Filtering what, I
> wonder, little
> bits of engine that get worn off? Isn't that what the
oil
> is supposed
> to prevent? By the time it needs changing, isn't the oil
> itself
> somewhat worn out, having been subjected to all that
heat
> and high
> pressure?
>
> Just asking.
>
> Regards
>
> Keith
>
>
>>Bio based, no... but I have seen, in the last few
months,
>> introduction of a
>>whole line of recycled engine oils in the local auto
>> parts stores here.
>>I'm not really sure what the recycled content is
>> percentage wise, but
>>apparently it's using old engine oil, filtering all the
>> bad stuff out, and
>>adding back in the additives that have been used up.
>> It's supposed to meet
>>the same standards as new petro-based engine oil.
>>Z
>>On Sat, Jan 21, 2012 at 7:29 AM, Jan Warnqvist <
>>[EMAIL PROTECTED]> wrote:
>>> Hello Keith et al.
>>> I am not surprised on the market non-introduction of
>>> castor oil lubricants.
>>> Castor oil, although a classic, is not ideal as a raw
>>> material for
>>> lubricant
>>> formulations. The castor oil has two hydroxyl groups
>>> on the fatty acid
>>> (ricinic acid) chain which will want to polymerize
and
>>> releasing water into
>>> the system, giving the lubricant an unnecessary short
>>> life. What attracts
>>> the lubricant inventors is the high viscosity and the
>>> expected high
>>> viscosity index of the oil which both looks promising
>>> enough. But I would
>>> prefer a more stable material to start with and then
>>> adjusting the
>>> viscosity
>>> values chemically.
>>> A good lubricant consist from a base oil and then
>>> added a number of
>>> additives in order to adjust the properties of the
>>> lubricant. It is then
>>> preferable to bring as favourable properties already
>>> in the base oil in
>>> order to minimize the addition of additives.
>>> Best to you all
>>> Jan W
>>> ----- Original Message -----
>>> From: "Keith Addison" <[EMAIL PROTECTED]>
>>> To: <biofuel@sustainablelists.org>
>>> Sent: Saturday, January 21, 2012 2:13 PM
>>> Subject: Re: [Biofuel] Bio Engine Oil
>>> > Hi Chris and Dawie
>>> >
>>> > The answer seems to be No. Sorry to say.
>>> >
>>> > It was first discussed here in 2001. Lots of
>>> interesting stuff in the
>>> > list archives:
>>> > http://www.mail-archive.com/biofuel@sustainablelists.org/
>>> >
>>> > Try "bio engine oil" or "biolubricant".
>>> >
>>> > (Don't forget, the whole thread is hotlinked at the
>>> end of each find.)
>>> >
>>> > If you do a web search, you'll find lots of talk,
>>> lots of products
>>> > that are simply biodegradeable, "green" lubricants
>>> to replace the
>>> > likes of WD-40 or 2-stroke oil, and a few
commercial
>>> bio engine oils,
>>> > with claims that they're made from renewable
>>> resources but they don't
>>> > say what, or they're a marriage of renewables (pig
>>> fat) and
>>> > nano-tech, or whatever, but nothing DIYable.
>>> >
>>> > I knew some people in Japan who were making bio
>>> engine oil from
>>> > castor oil. They wouldn't tell me how they were
>>> doing it, but they
>>> > gave me a bottle of it. Clear, light yellow, sort
of
>>> oily smell. But
>>> > after a while it started degrading, whisps of
>>> cloudiness started
>>> > appearing. Not perfect, and they never brought a
>>> product to market.
>>> >
>>> > Still, castor oil is probably the best bet. It's
>>> strange stuff - give
>>> > this a read:
>>> > http://www.georgiacombat.com/CASTOR_OIL.htm
>>> >
>>> > IIRC Brazil's Petrobras had plans for producing
>>> castor oil-based
>>> > engine oil, but I can't find any details.
>>> >
>>> > HTH, and good luck - best
>>> >
>>> > Keith
>>> >
>>> >
>>> >>This is something I've also been wondering about.
>>> -D
>>> >>
>>> >>>________________________________
>>> >>> From: C Pinelli <[EMAIL PROTECTED]>
>>> >>>To: biofuel@sustainablelists.org
>>> >>>Sent: Saturday, 21 January 2012, 1:56
>>> >>>Subject: [Biofuel] Bio Engine Oil
>>> >>>
>>> >>>
>>> >>>Hi all.
>>> >>>I'm still new to biofuels but have been making
>>> biodiesel and
>>> >>>ethanol for my vehicles for a few months now and
am
>>> thrilled with
>>> >>>it. However, I can't stand filling up my gas tank
>>> with home made,
>>> >>>environmentally friendly fuel, then changing the
>>> oil with expensive
>> > >>>petroleum. So, I have been doing some research
>> into making
>>> >>>Bio-Engine Oil, it seems possible which makes me
>>> very enthusiastic.
>>> >>>
>>> >>>Does anybody know anything about making vegetable
>>> based motor oil?
>>> >>>Or does anybody have any experience with using it?
>>> >>>
>>> >>>Thanks very much
>> > >> >Chris
>
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