I just installed the 6 oz bottles on bravo xrs
2/3 full they expanded over the top while running warm
and settled to near bottom when cooled with no visablility after cooling . Are they the wrong size for my drives?

thanks for input

Just a guess but it might be air in the line.
I had the same thing happen to my closed cooled bottles on one motor and when I looked the resevoir was about 3/4 full and when cold only a little sits in the bottle. Ran hot, filled up and when we looked at it actually saw all the air bubbles come up the line and the resovoir went back down the problem was then fixed....................

Just my 2 cents.......