Bike Milk is the most thoughtfully engineered lubricant for a chain I’ve ever come across. It’s a nice and thin lubricant that penetrates the chain and if left for a short amount of time it dries and stays in place. You want the lube in under the rollers and that is where it can get to ‘cos its nice and thin and with the drying action it stays there. Best lube on the market by far. I don’t do anything special to my chain. I’m quite lazy with my own bike. Lube it two maybe three times a week. Quite amazing. This chain has done 4000km at least, maybe 5000km and I only use Bike Milk on it.