Hi, I just changed my wife's CRV rear differential fluid and this is the second time. The first fluid change, I noticed the the unused Dual Pump II fluid color was like honey. For the the second time, I noticed that the color of the unused fluid is like pink or light red. I still have the left fluid from my first fluid changed as I only used about 1 1/3 quart total. Will appreciate if you could give any explanation or insight about this. Thanks in advance.