I have a 90 eclipse GS. I changed the oil and it reeked of Gas. What could cause this?

 

Gasses seaping out of the combustion chamber.

Its pretty common. Next time change your oilsooner.

 

Well, I would have changed the oil sooner, but I just bought it and it had fresh oil in it when I got it. I have put less then 100 miles on it and checked the oil when I noticed the smell. What causes the problem and how do I fix it?

 

Could be bad rings. Do a compression test.

 

Check your pcv valve, it could be bad. And itspretty cheap part to start with.