I've found it for other fluids (coolant) at pep boys and other auto parts stores.

I'm far from an expert but based on my own experience, the area's I would doublecheck are...
- Are you sure it's engine oil? If you're not sure, it could also be transmission fluid, power steering fluid, or differential fluid.
- Assuming it's from your engine, it could be the valve covers, or the front seal where oil drips through front plastic engine cover (timing belt cover). If there's an engine oil cooler on the 93 it could also be those lines.
- If it's tranny fluid, then it is likely coming from the tranny cooler lines.
- If it's steering pump fluid, it could be coming from the pump, reservoir, or the lines between them.

I'm sure there's more that others can think of.

HTH. <img src="/forums/images/graemlins/kewl.gif" alt="" />