What's the practical upper operational limit to how much 2-stroke oil
     can be added to the fuel and still have reliable operation?  Options
I
     can think of:

       - Eventually you'll have so much oil it fouls the plugs
(unlikely?).
       - Eventually you'll have so much oil it lowers the effective octane
     rating of the fuel (unlikely?) to the point of
detonation/preignition.
       - Eventually you'll have so much oil it lowers the power output
such
     that it won't make takeoff power.
       - You can't have too much 2-stroke oil - it'll run on 1:1.

     Is the upper limit so far above how much you'll ever accidentally put
in
     the tank so as to not be a factor?  I am envisioning accidentally
     adding
     the 2-stroke oil twice - doubling the mix ratio.  Probably not a
concern
     - just curious.

     Side question: How long will it run if you forget to put any into a
load
     of fuel?  Would there be any way to detect this condition?  Will your
     fuel calibration be off enough to detect it (assuming capacitive
     sensors).


     Regards,

     Matt-

     Jim Mederer reports up to four ounces per gallon does not hurt.
     George Graham flew from Tennessee to upstate NY forgetting to put oil
     in the fuel. Engine continued to run for dozens of hours. Engine
     never failed up until he died from cancer this year.
     --
     Paul Lamar ...No rotor no motor.

Thanks Paul..

Remind me, what's the ideal mix?  4oz/gal is 32:1..


Matt-

One ounce per gallon.

--
Paul Lamar ...No rotor no motor.

How many ml./liter would that be? I don`t understand ounces and gallons.

Erik
South Africa

http://www.onlineconversion.com
http://www.onlineconversion.com/volume.htm

One US fluid ounce is 30 ml

One US gallon is 3.8 L

So you need 30/3.8 or about 8 ml of two cycle oil per liter of fuel.

That is 125:1

Paul Lamar ...No rotor no motor.

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