Marius:
As I'm sure you know, your Vibe is a thinly disguised Toyota Matrix (personally, I think it looks better than the 'trix, but that's JMO). I just took a look at the Matrix Owner's Manual on line, and despite it having the same engines, there's no mention in the Toyota manual that I saw of the 6094 standard. Just 5w-30 API-SL. From the link in the previous post, it seems that the GM standard relates to cold temp pumpability. I have a hard time envisioning any 5w-30 having a realistic issue with pumpability, but who knows...
EDIT: My original search was only of the 2003 Matrix manual. I just reran it against the 04 and 05 manuals as well. Sitll no reference to the GM standard -- just API-SL 5w-30.
[ April 28, 2004, 10:38 AM: Message edited by: ekpolk ]