mogas in a 150

[cap41]

we use 100LL in our Continental 0-200 I have read were people have used mentioned using mogas. Mentioning the 0-200 cannot burn off all the lead in the 100LL gas. For longevity you might want to use mogas especially in high hour engines.

Whats everyones thought?

[Colonel Sanders]

Mogas has it's own problems, but there is
'way too much lead in 100LL for a poor O-200.

If you don't mind dropping the exhaust valves
into the cylinder every 500 hrs and scrubbing
the lead out of the guides, sure, go ahead and
use 100LL.

http://www.tc.gc.ca/media/documents/ca- ... /mogas.pdf

In addition to being much cheaper than 100LL
(at least around here, it's 70 cents a liter cheaper,
which is a LOT) it also will start better in the
winter when you fly it on mogas.

What I might suggest is fill it up with mogas at
your home airport, and occasionally top it up
with 100LL when you are at a different airport.

A little bit of lead of good for your engine, but
the massive quantity of lead in 100LL is NOT
good for your engine, which was designed for
80/87.

[cap41]

Are there any additives that may help. CYOO only offers 100LL and Jet A1.

Any other alternatives? I could always siphon from my car!!

[tyndall]

Are there any additives that may help. CYOO only offers 100LL and Jet A1.

Any other alternatives? I could always siphon from my car!!

Some have had success adding Alcor TCP to 100LL. You could also try a 50/50 mix of 100LL and mogas. For a 150 this is as simple as bringing a couple of jerry cans with you to the airport.

Just be damned sure the car gas doesn't have ethanol in it. Only some brands of premium don't.

One other thing to remember if your plane sits is mogas has a shelf life. Ever smell year old gas in a lawnmower? 100LL stays fresh for many years.

[cap41]

2 of us are training in it. It s flown when weather permits vfr flight. Seems Shell V-power 91 fits the bill.

[Colonel Sanders]

mogas has a shelf life

It sure does. I am always tossing fuel stabilizer
into the gas tanks of my motorcycles in the fall.

I am unsure of the legality (or safety) of adding
fuel stabilizer to mogas for airplanes. You always
have to worry about the solvents and chemicals
attacking the seals and such in your 150 fuel system.

Instead of adding fuel stabilizer, I would probably
fly the 150 and park it with (e.g.) 1/4 tanks. Next
time I flew it, I would bring out a couple jerry cans
of mogas that I purchased that day.

PS Condensation isn't as much of a problem as
everybody thinks. How water gets into your fuel
tanks is through the filler neck, usually when it's
parked outside in the rain and the gasket in the
cap has dried up. Or when an FBO pumps bad
gas into your tank. Both have happened to me.

PPS Your 150 has metal gas tanks. I don't worry
much about leaving them 1/4 or 1/2 full. With
bladders, I don't like to let them dry out but that's
not something you have to worry about.

[CpnCrunch]

Yes, I believe Shell V-Power is meant to be ethanol free, but still I would check it. You can buy a fuel tester that tests for ethanol (basically a test-tube with some markings on it) and you just add some water and shake it and see if the level changes. You may already have one of these (it's the fuel drain tester with the star screwdriver on the bottom).

Generally if you fill up one time with 100LL and 3 or 4 times with mogas, that will give you the recommended amount of lead. You don't need to worry about maintaining 25% avgas in the tanks. As long as you just give the engine an occasional dose of lead, that should be fine.

Just use 2 or 3 jerry cans and fill up each time you fly - it's a little bit more effort than filling up with avgas at the airport, but you get used to it (and the money you save makes it worth the effort

I wouldn't use any kind of additives unless they have been approved for your plane. Also bear in mind you have to buy an STC to legally use mogas in a 150 as far as I know. It's just a bit of paper, but TC will give you a thrashing if you don't have it and they find out (and you might not be insured).

[Colonel Sanders]

you have to buy an STC to legally use mogas

Please read this - right from TC:

http://www.tc.gc.ca/media/documents/ca- ... /mogas.pdf

[CpnCrunch]

you have to buy an STC to legally use mogas

Please read this - right from TC:

http://www.tc.gc.ca/media/documents/ca- ... /mogas.pdf

So basically if your aircraft is on the list, you can operate on mogas without needing an STC - you just need to make the appropriate entries in the logs.

Interestingly it says that you need to record in your engine log the hours using mogas, whether or not you have an STC. I wonder how many people actually do that.

[azimuthaviation]

PPS Your 150 has metal gas tanks. I don't worry
much about leaving them 1/4 or 1/2 full. With
bladders, I don't like to let them dry out but that's
not something you have to worry about.

What about the rubber O-rings on the sample drains? Those have a tendency to crack and create a terribly expensive mess.

[Beefitarian]

I'm not following az, even if your tank is nearly empty the drain should be submerged since it should be the lowest point of the tank. If the O-ring is going to crack because it's ancient that's a seperate issue isn't it?

[who me ?]

http://www.tc.gc.ca/media/documents/ca- ... /mogas.pdf

3.1.1 it says no alchol or ethonal, except for anti-icing.

If I recall both Lyc and TCM prohibit using any ethonal in the fuel in there engines.
It is a bit difficult to find any fuel these days with no ethonal.

[CpnCrunch]

http://www.tc.gc.ca/media/documents/ca- ... /mogas.pdf

3.1.1 it says no alchol or ethonal, except for anti-icing.

If I recall both Lyc and TCM prohibit using any ethonal in the fuel in there engines.
It is a bit difficult to find any fuel these days with no ethonal.

http://www.shell.ca/home/content/can-en ... ll_vpower/

"Shell V-Power premium gasoline in Canada does not contain ethanol"