My 1997 Buick LeSabre transmission was starting to shutter during shifting into and out of 3rd and drive. I thought “I’ll stop in to the AutoZone store and see what I can get to solve the problem.” Wow! The number of transmission additives cover several feet of shelf space. I read all of the labels, and I did not trust asking an employee because I always feel the recommend the one with the highest margin for them. So, what do I do? One brand claimed “results are usually immediate”. Hmm, at least I’ll know quickly if this one works. So, I bought Lucas Transmission Fix. I went home, poured it into the old Buick and went for a ride. Problem gone!!! It worked immediately! I suggest that you make the words larger on your container. Thanks for the great product.