Mainly spinning 1 tire...

I have heard that one bottle isnt enough, i know mine chattered lightly going around a slight uphill curb until i put another bottle in it. Felt like it was trying to lock and unlock. Still does it every once in a while but its only uphill with a slight curve and lower speeds higher rpm, like 10-15 in 1st at 2-3k rpm it will do it. Going down the road at 30mph its fine around curves. I also had a old timer tell me one time at a car show that the mopars with the clutch type differentials seemed to like more additive but from experience it seems to help