I was referring to 5 minutes of gentle driving to warm up the fluids (not 5 minutes of idling)
Ok, I dug up the link for you:
http://web.archive.org/web/201009261...ucas/lucas.htm
You want to look at the white foamy pics on the right side which may explain why you started smelling something bad. Is it possible your cold gear lube started to foam and provided no lubrication?