[Kracka]

'94 Talon: Rotella-T oil with Mitsu filter

'91 Talon (beater): SuperTech (Wal-Mart's brand) oil and filter

I personally do not believe in synthetic oils...changing convention every 3k is just fine, even that is overkill to be completely honest (with normal street driving). I use Rotella since it is a heavy duty conventional oil specially designed for turbo aplications.