How long can I keep yogurt in the fridge?
Wow, August 2008??
I'm pretty lax when it comes to expiration or "use by" or "sell by" dates -- I normally will keep and eat yogurt that is 2 or 3 months past its "sell by" date, but Aug 08 is really pushing it.
Open it and see what looks like. If it were me, if it tasted and looked ok, I'd go ahead and eat it with no qualms.
I'm generally jumpy about expiration dates, and toss things on the theory that one yogurt or whatever isn't worth the anxiety. But sometimes I think things really last a lot longer than I imagine. The other day I found a Greek yogurt in the back of my second fridge that had expired in June. The seals on Fage yogurts aren't that great and I figured it would be moldy, but it wasn't. In fact it was perfectly edible. Still, I felt weird about it and I gave it to the dog (he loved it). So it's a personal judgement call -- I guess you have to taste it, and if it tastes good, you have to decide if it'll make you nuts to eat it.