Ugo,

I don't get it. Please explain to me mathematically how my above response is incorrect. The oil is along for the ride with the fuel in this case. If less fuel mixture is going through the engine, this means less oil is going through the engine. Remember we are mixing oil with our fuel. So oil consumption is proportional to fuel consumption. We are dealing with total loss lubrication systems. If a diesel needs less fuel mixture, diesel fuel must have more oil to consume the same volume of oil.

Please understand we are talking MODEL AIRPLANE ENGINES. Every single model airplane engine I have seen uses lubricant in the fuel. So, yes we are mixing oil in the fuel, ALWAYS, two stroke or four stroke, diesel glow, or gasoline.


Theoretically what you are saying is absolutley true. Please show some kind of evindence of this in practice. The presence of ether in our model engines isn't a lubrication issue. Ether is present for ease of starting and handling.

And the one question that will answer all of our questions.

How much oil and what viscosity does a model engine really need?

If you don't have the answer to this question I don't think you can definitely say that ethereless fuel will damage an engine. We have to have a known to answer an unknown. Unless, of course, you have done experiments of your own.

You seem to fascinated with dilution. Thank you, for bringing it up. If it was a real problem those of us running fuel without ether would surely have noticed some problems.