Frank,
To your #7: Several glow engine users report Armorall reduces glow fuel foaming. Diesel fuel is different, with only the oil in common, and - as automotive petroleum-based oils also reportedly work with the ether and kero - that commonality with glow fuel oils may not always apply.
Glow fuels can foam when engine vibration is severe. Armorall apparently reduces surface tension - or some similar effect - so that there isn't sufficient film strength for a bubble's outer surface... (cheap and simple explanation; I expect more expert friends in here may provide a more rigorous answer.)
IF the raw diesel fuel foams on mere contact with Armorall, I certainly would not try to run the engine on the resulting 'whatever it turns into.' Possibly, more expert comment will touch on this... Glow fuel foaming is generally countered by a few drops per gallon (~4 liters). It doesn't always succeed... At that low dosage, it doesn't appear to have adverse affect on glow fuel.
Better would be to reduce either engine vibration, or improve the structural strength to reduce its effect on the fuel. Or both.
Last edited by Lou Crane; 05-20-2017 at 10:52 AM.
Reason: clarity, brevity