After getting my hands dirty trying to diagnose a leak I also noticed that my steering oil pipe, the one that runs from the reservior marked ATF (just right of middle of engine bay) is covered in grease/crap/dirt etc. from about half way down the engine bay and underneath. The metal part of the pipe where it exits the ATF reservior is clean and remains so for about a foot or so down into the engine bay but then it gets really greasy/crappy.
Juat wondered if anyone elses is the same or whether I've got another leak issue

Sorry if the descriptions are a bit vague but as always help and advice appreciated.