It is what it is, It's a combination of thick base oils and tackifier additives. It's ment for older worn engines which would benefit from a more persistant and thicker oil film.
It's not supposed to be used straight, and the synthetic oil stabilizer is a different formulation made with thinner base stocks.
The raw viscosity of the LOS is not so important, since its going to be diluted to a 20% fill when used according to the directions.
Transmission additives in general are a questionable concept, and doubly so for any Chrysler transmission which should use ATF+4 only.
For myself, the only oil addive I use for a complete fill is Lubro Moly MoS2 anti-friction, which I think improves cold start performance in the winter time, while not changing the bulk properties of my engine oil (Valvoline Synthetic 5-30).