with Cult bearings technology we suggest to use only a high quality, 100% synthetic, lithium based OIL with high rust protection qualities"
No such thing as lithium based oil.
The description of the type of oil to use isn't really helping either.
I'd recommend Dyupont de Nemours Krytox 200 grease for ceramic hybrid bearings. It's as slick as oil with extremely low friction.
BTW, what model of Fulcrum wheels are you going to upgrade.
I know of a shop that sells all the necessary tools if you're interested.
Being a snob is an expensive hobby.