Oil lamp comes on when running :(

[tomlinscote]

Seems to me after reading all the replies that almost each fazer is slightly different in its oil lamp switch point. For the past 7 years I filled to the top mark and all was well. After a run all seemed well, but I fear I won't be taking the bike out for a while yet, it has below zero for the last 6 days and reached -11 overnight. The ice under the snow is a real bugger so no riding yet!!
Any point in starting the bike up and leaving it running for say 10 mins or just leave well alone until the roads have cleared and I can go for an actual ride?
Cheers for all the replies
P