I changed my lower unit lube Sunday with what I am almost positive was Ultra HPF. It was yellow in color. I bought it about a year ago. I came up just a little short of the check hole, so today I went to buy some more lube to add. I took out the top plug, then the bottom and inserted the pump. I started pumping the new lube which I am positive was HPF (container looked the same) and it was a dark greenish color. I went ahead pumping until I ran some of the yellow lube out of the top. <br />My question is: what is the deal with the different colors, and should I go get more of the green stuff and pump the yellow completely out? Did the colors change last year, or, does it change over time?<br />Any help would be appreciated...
