Yep - that's what it is. I don't know how unique the fluid from the dealer really is, but I've never been desperate enough to risk finding out. If you can get it from Fastlane, do so. I once had the dealer try to charge me $43 US for a quart of the stuff - I complained and got it for $14.

Fill the reservoir and start your engine. The fluid goes through a pump that runs off of your exhaust cam, so the engine must be running to fill the system. The system is self-bleeding, so watch the level as the car runs for a while and keep topping it off when it drops. Once it has stopped dropping that way, drive the car a bit and keep checking the level of the fluid over the next few days, as it may drop more with suspension travel through normal driving.