[DeTomaso] Av fuel vs race gas

[Bill Lewis]

BTW, the smoke is from time-to-time, not all the time.  Also does it sometimes at idle.  Mechanic said to drive it to see if it sorts itself out.  BTW, he did not do any engine work. --Bill

> From: lotus0005 at hotmail.com
> To: detomaso at realbig.com
> Date: Fri, 13 Apr 2012 01:47:13 +0000
> Subject: Re: [DeTomaso] Av fuel vs race gas
> 
> 
> I've got a car with a 350 engine in it - been in the shop for 8 months.  It has a little smoke on the right side exhaust.  Any idea of what to add to the engine oil, or anything else, beside see it it will work itself out.   ---Bill
> 
> 
> 
> > Date: Thu, 12 Apr 2012 17:25:26 -0500
> > From: gow2 at rc-tech.net
> > To: knottsj at galstar.com
> > CC: detomaso at realbig.com
> > Subject: Re: [DeTomaso] Av fuel vs race gas
> > 
> > Marvelous Mystery oil has been a bit of a scam over the years. It is
> > basically pig fat in a petroleum based solvent with red food die and
> > perfume.
> > 
> > The need to add die to make an oil look pretty an a perfume should be
> > enough to make anyone weary of the product. While most say it will not
> > harm much they also say it does darn near nothing.
> > 
> > Here is a write up of it:
> > 
> > http://www.avweb.com/news/savvyaviator/savvy_aviator_52_thinking_about_oil_changes_196730-1.html
> > 
> > "Marvel Mystery Oil -- which is basically a thin, petroleum-based solvent
> > to which red food coloring and perfume has been added -- does seem to have
> > some value in freeing up sticky hydraulic-valve lifters when added to the
> > oil and it almost certainly does no harm. However, I wouldn't recommend
> > using it on a regular ongoing basis (in the absence of audible
> > valve-lifter clatter), and I certainly would discourage anyone from adding
> > it to avgas (as opposed to oil)."
> > 
> > On another note,
> > 
> > Keep in mind 100ll still has lead in the fuel. I would not run pure
> > synthetic oil. Shell came out with a full synthetic oil for piston powered
> > aircraft a while back. Suddenly they found engines were failing about 1/2
> > way to TBO (Time between overhaul) and controllable pitch propellers were
> > seizing up.
> > 
> > Through many lawsuits Shell bought many an engine and propeller. What they
> > found was pure synthetic could not break down the lead in oil and the
> > sludge build up too fast failing engines and locking up propeller
> > mechanisms.
> > 
> > They have not had a full synthetic fro propeller driven airplanes since.
> > Synthetic mixes yes, but not a full synthetic.
> > 
> > Gary
> > 
> > 
> > 
> > > Collective,
> > >
> > > All my life I have heard that aviation fuel has additives that make it
> > > unsuitable for automotive use.  Is it only that you carb won't ice at
> > > 20,000
> > > ft or is there more to it than that.  I have been told that you should add
> > > 1
> > > oz of Marvel Mystery Oil to each gallon of aviation gas that you use.  I
> > > have also been told to mix it 1/2 and 1/2 with regular unleaded 91 oct.
> > > With aviation gas at $5.00 and race fuel at $10.00 it makes a difference
> > > to
> > > me for a higher compression engine.
> > >
> > > Thanks in advance to the collective,
> > > jerry
> > >
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