BATS4

Actually, I did not ask them how their product worked, obviously they will say it works. What I asked was if it was compatible with the Pentosin fluid. I asked the members here if they had any experience with these products and how they worked. I appreciate your opinion, however, since you do not seem to have any practicle experience it is just that, an opinion based on little or no knowledge of the product. I am not sold on this product and am not sure if it is a viable option for this problem that seems to plague a fair number of S4 owners. However, in my experience with other cars I have found some aftermarket products that are truely ingenious and work wonders. I was hoping someone here had found this to be one of them, or not. Therefore, you can keep your swampland and your opinion, I dont need either.

s4for5_TTfor2

stop leak is not the answer if you don't know where the fluid is going.
good luck