I have a Chem Eng degree from 1994 and have B+ in both Ochems (but no labs). Overall, my GPA is below a 3.0. I've been taking pre-reqs the past year and I was all ready to audit Ochem I and II this summer, while taking the labs for credit. Do I need to worry about my previous Ochem classes being to old? I have looked at the websites of the schools I'm interested in (IUSD, UOP, NYU, BU, etc.) but haven't seen anything specifically stating that it's a problem. By the time I apply I will have repeated or taken all the other pre-reqs for the first time within the past two years. I wanted to audit it for review and not have to worry about studying, because I want to get a lot of shadowing done this summer. Sorry this is so long, but what would you guys do?