@J000seph I would have to say that, going by the pictures that were posted, there appears to have been a change of some sort. I've had two bottles of 4030, and they were milky white right from the moment I got them (they were received in fair weather conditions). In the photograph that LeakyValve posted the one on the left looks like the plastic of the bottle has not changed, but the liquid itself appears to be more clear. Not sure. I'll know in a few days or so, as I need to order more. For reference, the 4030 I have hasn't changed in appearance, only in fluidity.