Yes it is. there are rectangular holes around the center column and the "oil" seeps out from there are goes downward around the spirals of the center column
okay this is not the best news, the transmission is whats leaking the yellow oily substance. its actually transmission oil. the seal on the shaft of the transmission has failed. unfortunately the transmission itself would need to be replaced to fix the issue. its more than just a seal the shaft has oblong and wore the seal. the transmission is around $182.00 you can order one at the following link if you wish. theres also a video to show you how to replace it there.
heres the link