* rrgrassy, looks like you've covered all the bases. And there's a lot of useful advise in this thread. Can't say that's the case with every thread on this forum.
* I checked out the URL in your post for the Odyssey battery. That's a dry cell battery. Didn't even realize such a thing was commercially available for anything larger than a flashlight.
* If I were still driving diesels, lived in areas with weeks of sub zero night time temperature, and had to leave the car outside, I would probably try one of those dry cells. Of course, if the car repeatedly makes you late for work, that's a very good reason too. Also, assuming that all your regular diesel maintenance is up to date, an expensive battery is a lot cheaper than a different car.
* Interesting that the Odyssey comes out of California (or am I thinking of something else). Not exactly home of the severe climate. I wonder how the dry cell does in extreme heat (bumper-to-bumper traffic on a 100degF day w/ the air on).
* The standard wet cell battery is, with age and use, prone to sulfating and cell-continuity problems. I wonder what the main threats are for the Odyssey dry cell. Is the battery finished when there's no longer a chemical reaction (like a flashlight battery) or can other conditions (mechanical, thermal) defeat it? Would be interesting to know what the most common reason is for warranteed batteries.

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