[Brian_I.]

I've read several posts on here that say it is not backward-compatible. Just as an aside, I checked my transmission fluid level last night (with the car running but in P) and it was really low, way below the first line.

I have a slight leak underneath my car that I always assumed was oil, could it be I'm actually leaking transmission oil/fluid? Anyone else have this issue before? Would it be worth it to do a fluid/filter change at this point? The last record I have of transmission service was in 2000 when the car was at 90k mi, today I have 173k mi on it.