I don't think that there is anything special about either the lubricant or the additive. As a matter of fact, I've seen the lubircant available with the additive already in there. Lemme know if there is a particular brand that you want to use that is not available UK. I'm sure we can work something out to get it to you.

BTW, since y'all drive on the wrong side of the road, the additive may be referred to as DSL over there.