Save money on the additive thing. Specific lubricity is required for proper function of the transmission. If you alter that part of the equation, something else will probably give.

If you are concerned, simply change your fluid more often.

As we always say on the farm, dealing with extremely high stress lubrication situations: change it hot and change it often. If it breaks, get a new one.

__________________
DS
2010 CL550 - Heaven help me but it's beautiful
87 300D a labor of love
11 GLK 350 So far, so good
08 E350 4matic, Love it.
99 E320 too rusted, sold
87 260E Donated to Newgate School
www.Newgateschool.org - check it out.
12 Ford Escape, sold, forgotten
87 300D, sold, what a mistake
06 Passat 2.0T, PITA, sold

Las Vegas NV