Am I the only one that caught he works at Autozone and acts like he can't even figure out where it's losing oil or that it'd be a major job to swap a motor in a Honda? They're like Legos, everything falls into place.
Keep the car you have, use your employee discount to repair what needs repaired, and stay off of any car related website (unless it's for maintenance help) until you're stable enough to have money to play with. Avoid the temptation of blowing money on cars right now. We've all been in a situation similar to yours at some point or another. I've been there, but now I'm 25 with a 4 month old, a wife, a decent house, and live a pretty comfortable life because I worked for it, kept my priorities straight, and planned pretty well.