Anil M

I was initially a bit skeptical in buying this product. The reviews were good but I had never heard of the product nor the technology. I purchased RVS for the transmission in my 2009 Cadillac ESV with 160K miles, I followed the directions to add it after a transmission service. Wow, what an amazing difference! The transmission shifted much more smoothly, so smoothly I could no longer detect it shifting unless I was looking at the tach. After that experience I added RVS to both differentials, the transfer case, power steering, and the engine oil. WOW again! The car drives so smoothly and quietly. It literally feels like a new car again. It is so smooth and quiet I really only notice road and wind noise.