"How To" grease rack & pinion

I never knew if this idea had any merit but when I had my previous 240z 30 years ago I pulled back the boots and applied a coating of grease all over the metal under the boot including that serrated gear thing. I turned the wheel all the way one way, put grease on anything exposed under the boot and then turned the wheel all the way the other way and put grease on any freshly exposed metal under the other boot. I didn't have an FSM back then though it doesn't mention that idea I don't think.