Two issues: 1) I agree with Richard, takes grease to stay on the gears while whear-in. 2) Teflon in oil treatments takes heat (something line 400 degrees F, I think) to bond the teflon particles to the metal bearing surfaces.

Oops,,, 3) you don't apply teflon until after wear-in (break-in) period.

You can get an aftermarket teflon spray on treatment, but I doubt that the benifits would be worth the time, effort, and costs.
(I use a S&W gun oil, with teflon additive, on stainless steel semi-auto pistols. Doesn't appear to do a thing over other oils made for stainless, no coatings or anything like that...)

nice idea though....

Best to all,
Splat