How to lubricate cables? What is the best way to lubricate gear and brake cables in their tubular housings? Up until now, I've used CRC/WD-40 with an extension tube and attempted to squirt the lubricant into the tube housings. However, I suspect that this is fairly ineffective because 1. WD-40 is not a great lubricant (judging by the other Q+A on this site), and 2. the lubrication doesn't travel very far into the tubes.

So what is a good way of doing this?
As many cable manufacturers recommend, modern cables+housings are designed to not be lubricated.

So, if you have modern cables, I'd probably avoid lubricating the cables period.