Originally Posted By: SilverFusion2010
Then shake and pour. Or you could just not worry about it.
^^This. I posted about it here several years ago, but I was changing transmission fluid in my '71 Cougar that takes type "F". You drain the torque converter on this car, so it takes quite a few quarts. About half the oil I put in was Pennzoil and the other half was WM oil. It had probably sat on the shelf in the store for several years, but all of the Pennzoil had deposits in the bottom of the quart containers. I didn't see any in the WM containers, but perhaps the oil was a lot newer.
I just poured some WM oil into the Pennzoil containers and shook it up real good before dumping it into the transmission.
This site has got everybody shook up and worried over the smallest things.