Re: Marvel Mystery Oil

Posted by Andy - Hammond, LA --- Was actually invented by the maker of the MARVEL carburator! :-D on April 15, 2002 at 12:11:00 from (66.190.214.170):

In Reply to: Marvel Mystery Oil posted by Dave Smith on April 15, 2002 at 11:44:07:

Some info found:

Marvel Mystery Oil is a light viscosity naphthenic oil (roughly
equivalent to an SAE 3W), with about 20 percent solvent (probably
mineral spirits), dye, wintergreen for smell, and 790 ppm of
phosphorous additive...
MMO contains no dispersant to hold dirt in suspension... therefore
dilutes the dispersant in the oil. MMO dilutes the viscosity index
of a multi-viscosity oil, thereby making it less resistant to
temperature [changes]...

"Mystery History.
"Marvel Mystery Oil was formulated shortly after World War I by
an automotive engineer named Burt Pierce, the man who invented
the Marvel carburetor, the standard automobile carburetor of its
time... GM bought up the rights to the carb and hired Pierce as a
consultant.
"The Marvel carbs were susceptible to clogging by lead and contam-
inants, so Pierce cooked up a mixture of light oil and various
chemicals to clean out the carbs... In 1923, Pierce went out on
his own and incorporated as Marvel Oil. He began selling his
'mystery oil'... claimed to be a universal lubricant and cleaner,
'one for all, and all for one.'"
Joe Howard (v-p, Marvel Oil) is quoted "'The basic formula hasn't
changed since 1917.'

Some more info:
That's essentially correct. In the 1920s, gasoline was unstable, and
could oxidize to form varnish. But that has nothing to do with the fuels
of the last 50 years, which are stable, and for the last 30 years include
detergents to keep fuel injectors clean.

"Aviation Consumer" had MMO analyzed, and it is a single-weight oil
with a viscosity rating of 4, peppermint odor, blue dye, and contains
phosphorus (presumably triphenyl phosphate, which is what's in Alcor
TCP and Lycoming LW-16702 additive). In oil, it acts as a solvent and
dilutes the base viscosity. In fuel, it lowers the octane rating slightly

Regards,
Andy

Follow Ups:

• Re: Re: Marvel Mystery Oil Bob in NY 12:40:18 04/16/02 (0)
• Re: Re: Marvel Mystery Oil No,no.....it was invented by this guy......................dave#1 15:07:50 04/15/02 (2)
  • Re: Re: Re: Marvel Mystery Oil bg 16:02:40 04/15/02 (1)
    • Re: Re: Re: Re: Marvel Mystery Oil LOL 19:10:26 04/15/02 (0)

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