Thanks again for this great product Frank. I used it successfully in my wife's 01 cavalier. 150,000 miles and the trans would shutter in 3rd gear at 70mph on tcc lockup. Previous tried shudder fix to no avail. Fluid had 50K on it (interval is 100K per manual), so I followed trans instructions. After treatment and fluid change, tcc is no longer shuddering at 70mph :)
