Note that there's a zero offset to the ruler.
Glowplugs are dead ATM (spares in the shed), but it cranked to life without "sniff".
Problem was that when I went to move off, the rears spun together, and slid the back into the kerb.
4WD, and it moved into the stree but the LSD is really really tight, still after 12 years and 127,500km (RP 75W140 - I don't hate RP), and didn't want to allow the front to do anything without understeering badly.
Decided discretion and valour and returned home for a few hours until the melt...ran things via phone for a while.
The Nissan is about my favourite vehicle ever, but the really tight LSD just doesn't like snow.
Still, negotiating my return, there were quite a few cars at strange angles that couldn't get out of their own way.