just purchased 02' Galant DE

I just bought my girlfriend an 02 with 37,000 miles with the 2.4L. Now I know little about imports and since I have no manual, I have no idea what type of oil to put in or type of tranny fluid it takes and what type of problems to expect and tips to avoid future problems. Another question is that it did not come with a keyless entry key fob, is it possible to buy a remote and program it for the DE or is it only on the upper models and if so, how do I program it. I also found a pair of factory foglights with the cut outs and all, my question is there a seperate switch from the factory for them or do i have to splice it into the running lights or buy a toggle switch? Thanks for any info