Dunno, but UBS looks like the same kind of idea and comes in 750ml bottles (and there was an offer on buying 2!).
Currently using Muck-Off dry untill the bottle runs out then will try the UBS on the chain with the empty bottle.
Putoline in winter. It would probably do a great job in summer too, but I can’t get my head arround not having to re-lube the chain for that long (if you avoid actualy riding through hub deep mud it would probably do a whole winter, god knows how long it’d last on summer, I chicken out first!). The trick is to use a gas hob, not a trangia, get it hot enough that it gets really thin so that the excess runs off the chain as it comes out.
Between 3 pints of UBS and 2.5kg of putoline, I don’t think I ever need to buy lube again.