my car is 95 mazda mx3 with a 1.6L engine so its a 4 cylinder...the oil seems to be leaking at the cap seal located between the distributor cap and the other part (idk the name)that connects to the engine
The distributor doesn't have any oil. In fact it has to be bone dry inside.
The distributor (not the cap) is attached to the engine block and I suspect that is where the oil is leaking from.
While the work is easy (if you know what to do), I don't suggest you do it yourself. You risk taking the distributor out and not being able to put it back. A mechanic should charge no more than the parts and 1 hour labor -as it is straight forward remove and replace work.