Hey guys I went to academy and bought some lower unit oil for my boat. Well I bought the Citgo brand marine oil. So I get to my house and nedded a little more lower unit oil so I grabbed what I used last yr, penzoil marine lower unit oil. Well They are both OK for my motor, but I noticed that the citgo had a blue tint to it and the penzoil looked like regular oil. So I just said screw it and added what was leeft with the penzoil. Will it hurt mixing these two oils togethor??? Wouldnt think so bc they are both marine lower unit oil??![]()