in my case I noticed a big difference in the gearbox on my 20 year old Mercedes 722.6. I changed the fluid which was supposed to be for life and put in a new filter and added a bottle of this ATF additive to my transmission and it works great, I will be adding this to my 2002 BMW and also at the next transmission service, can't say that everyone will get the same results, but it worked for me
Enhance Your Engine'S Performance With Rislone Hy-Per Lube HPL201 - 32 Oz,1 Quart
29 Review
Rislone 4416-6PK Smoke Repair: 16 Oz, 6 Pack - Seal Rings Quickly & Effectively!
12 Review
High Mileage Engine Treatment: Restore Your Vehicle'S Performance With Rislone 16.9 Oz!
33 Review
π§ Stens 610-401 Fuel System Maintenance Kit - Enhanced Performance, Black
9 Review