@bigkid posted:Just as a note on fuel oil/diesel, etc, there are a variety of products variously called "oil" or fuel oil, there are different grades of almost all of them. So called Bunker fuel oil is one of the lower level products that comes out of the distillation process, it is heavy and because it is less refine, is a lot cheaper (among other things, the yield of bunker oil is much larger for a given barrel of oil, the less refined something is, the more you get per barrel.) Diesel fuel oil and #2 home heating oil are similar products,
Generally "home heating fuel" is #1 diesel.
you can use #2 heating oil in a diesel, but I wouldn't recommend it, #2 heating oil is less refined, is quite frankly dirtier than diesel fuel, and it also doesn't have additives for things like waxing up in cold temperature and the like; plus it is illegal to use it in road use diesel engines because it doesn't have road use taxes on it).
Again, "home heating fuel" is #1 diesel and is far more refined/filtered that vehicle #2 fuel. In fact, in extremely cold weather, i.e. minus 20 below zero and colder, #1 diesel can be used in diesel powered pick-up trucks, in order to prevent waxing.
The reprocessed waste oil they are using (and I claim no expertise with that) has basically been refined again with what I know of recycling. It is probably closer to bunker oil in its characteristics than diesel on a semi educated guess.
Nope! Reprocessed waste oil is about equal to SAE 30 weight motor oil, and a LOT less expensive than #5 Burner Oil. Also, for what it's worth, the extremely thick/heavy Bunker Fuels, are pretty expensive and fairly difficult to obtain (especially since it has to be kept hot in order for it to flow, just like tar). Ever since the Metro-Chemical industry, i.e. plastics, was begun in the mid to late 1950s, Bunker C is no longer "leftover".
I can tell you that 'oil' as a term is meaningless, the number of categories of refined oil that spans transportation or other uses is huge.
I can understand why people would think Disney simulated steam engines, most of the park railroads out there seem to be running on a diesel or gas engine with "simulated" effects. Disney though is big enough to afford having the 'real thing' there, to be able to pay for the upkeep an whatnot.
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