[geojim]

I was coming back from the store tonight on a stretch of Interstate where the speed limit is 70mph, so I'm sure I was doing at least that. While going up hill, and maintaining speed, a big plume of oil/smoke came out the back. The driver behind me swerved to the other lane. Since it was night I could not see it that well, but vision out the back window was pretty much blocked by blue/black smoke. I notice a little loss of power.

As quick as it came, it left, and the rest of the drive home was normal with no smoke and the car ran fine. I'll look at it in the morning, but am a little confused as to what would cause this?

The little Metro only has 328K miles on it - hardly broken in...