What type of oil are you all using?

I just picked up a 06 Supra Launch 20 SSV and Im wondering what oil is safe to use. I work at a Porsche/Audi shop and we have 0-40W Mobil1 synth in our lines. Do I have to stick with a "Marine Engine Oil" or can I pretty much use any mineral/synth motor oil?

Also what kind of Gallons Per Hour should I be expecting? I have the Indmar 5.7 325hp

(Message edited by megatmoe on February 14, 2008)