ok i looked under my car today and the tip of the tranny right between the engine and tranny has oil on it. so it looks like its coming from the oil filter area. are their any hoses around that area that would cause it to leak oil. cause i've had to add oil every couple days.

 

is the filter screwed on all the way ?

otherwise it'll probably be the o rings under the oil filter block

 

http://haxx0r.net/car/rx7/oil_ring

or, the oil pressure sensor (pretty much right below the filter) is another real common leak point. Both of which are near the back of the engine, and with the fan blowing/air flowing from driving, oil is sure to get all over everything.. It was getting on my exhaust so much that smoke would pour out from under the car at stops! hehe

-Tesla