1995 SL 500. I though I left something out and.......... you beat me here.

Is this frustrating or what

New try: 30 min ago. Start, fine w/no smoke but some water coming out tail pipe. But, the water level was exactly where it was yesterday w/new thermostat (80 C).

82 for 20 min and gradually climbs and still water or condensate coming from tail pipe and taste basically like water but makes the tongue dull for 10 seconds.

Climbs to ~100C and still no smoke. It did this same thing before I replaced the thermostat.

Can ethanol gas clog the cat convt and cause this phenomenon? O2 sensor???????????? at wits end.