I removed some fluid from power steering unit. It is so small,only removed maybe 4oz so I wouldn't go below hose in unit. Marked how much was removed in plastic beeker,added Mobil 1 syn ATF. Do you know total amount of fluid is in my unit? 2003 toyota tacoma 4x4 6 cyl. I want to add more.so it will be mostly mobie 1 in there. Thanks John Da :)