[MT930]

I fire the car up the last day of the month, to keep things lubed during the November to April storage period here in the frozen north. The car fires on the first turn no smoke at all. The oil pressure needle peg's the the 5 line and stays there at 900 RPM I am a little concerned no normal fluctuations at idle it should be at line 3

but I think at least it's not low oil pressure no oil light or rapid temp gain. I drive the 1/4 mile in the neighborhood then put it back in the garage needle never moves off the 5 line on the gage. It's 38F out side the garage is heated to 50 F. Could very cold oil cause this? 20W 50W Dino oil car ran great just like I had driven it for the last week. Never seen this before, Whats going on ?