As soon as funds allow I'm going to order some Amsoil cetane booster for my OS 160FX. I'll start on glow and switch on the fly to diesel. I'll try to adjust the compression and timing with head shims and prop size. Won't be optimum but it will give something to consider. I have a couple quarts of lamp oil so I'll give that a try first.

Do you think a diesel runs with more or less compression than a typical glow engine?

I need to confirm that a overcompressed engine sounds labored and knocky and an undercompressed engine misses and sputters. Does that sound about right?

I would like to see one of those four stroke conversions.

Which do you think provides better lubrication and a cleaner plane, the 50 weight aviation oil or castor?