IVM went in before last winter and still had the issues after that. I did take it apart and it had some hints of water/moisture, but nothing that I would say culprit. Nothing was burnt/corroded.

So far, we're just getting hints of sub-freezing temps. I find it does show itself after sitting overnight and the engine gets really cold. If a short stint between starts, it seems to not stumble. I was going to toss on a block heater to see if that helped, but I shelved that project.

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Daily Drivers:
- 2008 535i, 320,000km
- 2004 X5 4.4, 01/2004 production, 420,000km
- 1997 328i, 350,000km

Track:
- 1996 328i, track/race car, ~300,000km

Winter:
- 2013 Ski-Doo MXZ X 800 E-TEC, trail can
- 2007 Ski-Doo MXZ Blizzard 800 HO
- 2001 Ski-Doo MXZ 600 w/800 engine, exhaust
- 1978 Ski-Doo Olympique 340 (vintage race sled)
- 1977 Ski-Doo Olympique 340E