No. The relay is on the upper side of the fuse panel inside the car. You get to it by pulling out the round vent to the left of the steering wheel.The relay is in the junction block under the hood.
For now, I am going to just run with the anti-sludge oil. Not sure if it helps at removing existing sludge... probably not. I would love to clear out the sludge mechanically, but I don't want to cause any other ill effect in doing that