Graham,
There are so many ancillary ingredients added to MoGas it would be
difficult to list them all on the side of the pump. According to the
Wisconsin State Government, there are over 150 separate chemical in
gasoline. There are detergents, solvents, oxidents, octane increasers
and many other things beside C5 - C12 hydrocarbons. And it varies
---From Regular to Super Premium. Some of them are mandated by the
government. Others are there to keep your carb or fuel injectors,
etc., neat and tidy. Most of them change on a seasonal basis to
provide fuel which meets Federal standards on emissions. Here in the
U.S.A., there are even regional formulations. Fuels that provide the
minimum emissions for the temperature/humidity ranges of the area.
Fuels that are OK in Minnesota are verboten in Texas and vice-versa.
Though, I bet if you wrote to your favorite oil company you could get
a listing of ingredients. I doubt there are any "secret"
ingredients. Check their website for information and contacts. You
can also do a Google search on Gasoline Additives or start with the
Wikipedia and ask about gasoline and/or gasoline additives. All
provide good starter information.
AvGas on the other hand is almost devoid of additives other than
tetraethyl lead for antiknock. This is why AvGas stores well and
MoGas doesn't. All those MoGas additives are volatile and will
evaporate out of MoGas surprisingly quickly.
Certainly there are no insidious reasons for the oil companies to hide
what goes in their gas. It's just that most folks wouldn't know what
2,4-dimethyl-6-tert-butylphenol or methylcyclopentadienyl manganese
tricarbonyl are or what they do in any case.
Just some thoughts from a fellow who has been in "da o'l bidness" (as
they used to say in Louisiana) for 30+ years.
Check six,
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
(95% done 95% to go) tail kit done, wings closed, cockpit module
installed, pitch system in, landing gear complete, rudder system in
with Singleton Mod, outrigger mod in, Fuselage Top on, lift/drag/flap
pins in, wing incidence set, tie bar in, flap drive in, baggage bay
in. Fuel system complete. Rotax and Airmaster installed. Mods 62,
66, 70 & 72 done. Completed the instrument panel install. Europa
interior kit being installed. Installed windows. Working in - 25
Electrical, 28 Flaps, 30 Fuel System, 32 Tail, 34 Door Latches & 35
Doors, 37 Finishing. Mostly finishing these days.
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117
On Apr 30, 2008, at 17:47, Graham Singleton wrote:
> >
>
> I tend to blame the oil companies for putting all sorts of stuff in
> the fuel without a word to anyone.
> Could be wrong I suppose
> Graham
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