RE: Plug temperature
Bob,
You are probably basing your last post on a misconception...
Using to hot a plug FORCES you to run the engine richer; perhaps much richer than ideal, so as to prevent the onset of detonation.
This will make the engine cooler than ideal, eventually causing wear to increase...
When an engine is running with sufficient lubricant, adding even more lubricant will not protect the engine better. It will not make the engine live any longer either.
Enough is enough and any more than enough, will just be a waste of fuel and a waste of lube.
Again; nothing but a waste of costly resources, which you have the honor of wasting a larger part of your pay-check to pay for.
What a great feeling? To carelessly waste stuff, like there's not tomorrow...
What kind of an education will your kids get from that?
For efficiency (and this also means longer flights), use the coldest glow-plug your engine will run reliably and consistently with.
This in combination with the lowest percentage of nitro that will serve the same purpose, unless you are competing and every last RPM counts.