Wonder if anyone has ever found a way to make black or grey smoke for steam engines. Would black or grey food coloring or dye mix with Lionel smoke fluid and produce a darker color? Would the mixture damage the smoke unit? Or is there another solution?
How often we see videos of steam engines blasting out black smoke from the stack as they fight climbing a hill.
Would be nice to see a little darker smoke coming out of the stack rather than white all the time.
RAY
Our toy train "smoke" is not really smoke at all, but is actually oil vapor. You might think of it as "oil steam", although that terminology is not technically correct.
Real smoke has particulate matter in it - unburned particles of what ever was being burned that made the smoke.
A big part of it is the difference between boiling and burning. Our toys boil the smoke oil to produce oil vapor, but do not burn/combust anything.
Anything making black smoke would include black particles that would be dirty, messy and hazardous to your lungs.