Years ago, I shared a house while I was in London. Sick of paying rip-off prices for small quantities of beer, I started a beer syndicate... Members bought 'shares' which paid for the initial purchase of a couple of slabs from Tesco. Membership entitled you to buy individual cans at cost (rounded up), while guests paid a premium price (still a bit cheaper than an individual can at the local offie). I reckon the same system might work for motorcycle oil. Buy in bulk (like 55 gallon drum bulk) and members could buy the 3.2 litres (or whatever) they actually need at bulk price instead of having to buy 4 litres at retail. The setup costs might be a stumbling block - you'd need some sort of hoist to move the drum onto the back of a ute or trailer and off again. Though perhaps something could be knocked up by someone with a welder and some scrap steel? Where to keep the drum is another problem, no good if it's locked in someone's shed and they are never there. And you'd need to decide on one (or perhaps more if enough interest?) brand(s) / spec(s) Plus, whoever is doing the transporting will need to be compensated for costs... Food for thought?