Well, it was worse than I thought. it turns out it'* a 92, with the EGRless L27, and the LIM gaskets are clearly failing. It has 107k on it. The wrecked part was worse that what I thought, the ABS and BRAKE lights were on, and the fuel gauge was kinda wacky. Otherwise it was fairly clean, but a big NO. Here are some pics.
Overflow tank, looks to be a LIM gasket failure to me.