Thank you guys. This is very helpful. Quick answers:

- Starter is the fast one (I've actually been told they do not make the slower one anymore...). It is much faster than the one I had before.

- Glowplugs are Bosch.

- Valves adjusted in the fall. I think I did a good job. Runs great.

- Battery cables and starter cables got replaced with the new starter.

- When the pencil glowplugs were put in, I did not change the relay. Now the light doesn't turn off. Sometimes I just let it preglow for 2 minutes straight, sometimes I pretend that it turns off and run the GPs for 30 seconds, shut off, preglow again, etc. Leathermang mentioned in a PM that just because the light stays on doesn't mean the glow plugs are still on. Good Point! and worth checking on.

My last failed starts were at 12F and 15F and I have some anti gel stuff in the tank but not much. I'm going to throw some kerosene in there tonight and run it for a bit. It'll be 15F at 6am and I'll give it a go with the kerosene.

Anybody with experience in the w124? Can they do even better than 0F?