you will need to clean the area as best you can, as oil leaks have a habit of spraying oil around, making it hard to spot leak. you will need to jack car up and do a visual check to spot where it's coming from, check sump, rocker box gasket, power steering pump first, as these are the more likely places.
helpful?
February 2011
I can answer this question...
oil leak in the left hand side of engine.isuzu trooper 3.0 disel 2001?