I have been running Valvoline dexron V1 full synthetic fluid in my trailblazer and like it a lot , its getting hard to find in the stores around here all I can find is the Valvoline maxlife full synthetic, but the maxlife has conditioners in it to keep the seals soft , i dont like to use anything that can make the seals deteriorate, the only reason i use any kind of stop leak in a transmission is if i was trying to make it stop leaking for another year or two till i could fix it or sell it . Mine does not leak at all. here are links to the fluids ,just a little worried about the maxlife or am I wrong about the type of seal conditioners that are in it.
http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/36
http://www.valvoline.com/products/brands/maxlife/automatic-transmission-fluid/37
http://www.valvoline.com/products/consumer-products/automatic-transmission-products/automatic-transmission-fluid/36
http://www.valvoline.com/products/brands/maxlife/automatic-transmission-fluid/37
