I purchased a 05 Chevy TrailBlazer with 45K in November. Over a few months a was not excited how my transmission was shifting. I had done a throttle body cleaning, which during the process I had the battery disconnected for about 1 hour. After reconnecting the battery, the transmission did not have the weird shifts it had previously. So now I have done a pan drop. filter replacement and a complete flush with 2/3 RedLine D6 ATF and 1/3 Specialty Formulations Autoglide(my last bit,
) After 5 days I can tell you my transmission shifts better than ever. The soft 1-2 shift is no longer there, it actually engages now. For the future I may need to visit a certain someone to "persuade" him to produce more Autoglide.

