I would not go WOT when the engine is cold. These diesel engines are not too much different than a gas engine in that the oil needs to heat up and thin out, as well as metal expanding. As in a gas engine, you'll make it more prone to excessive wear more quickly than if you let it warm up. That being said, not that you can't drive it (seeing as that is the easiest way to warm it up) but I wouldn't mash it while cold. Not to mention a turtle would probably beat them up a hill when cold....

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth