So, yay, winter. When it's in the teens or below Klanki starts up just fine, but the idle just after starting seems high, even when it's warmed up. I mean it goes up to maybe 1400rpm then settles back down to idle in a few seconds. Is this normal? Seems to me that on a bone-cold 5°F engine you wouldn't want the revs much over the bare minimum til the oil gets pushed around a bit.

Also changed the dino-oil for Mobil1 5W30 today... seems to idle more smoothly afterwards but maybe that's just my imagination. Will change it for 10W30 in the spring, if that ever gets here.

A few hundred rpm won't make any difference to the engine innards when it's cold. The key is that you don't want to *load* the engine until oil is circulating, but that should only be a matter of a few seconds if you have decent oil in it. The really stupid thing people do is rev the bejeesus out of a poorly-running cold engine in an attempt to keep it running... as an engineer, that drives me nuts!!!

When I lived in the NW hills of CT and had no garage, I found that Mobil 1 definitely helped cranking speed on those frosty mornings. Now I'm in the AZ desert and I appreciate it for its resistance to breakdown at high temps!

Running lighter oil in those temps is a great idea. Your owner's manual will give you recommendations for various temp ranges. 1400 on a very cold day is perhaps a hair high, but not bad. If it drops down shortly after start up, I think you are probably doing fine. The key is where it idles when warm. Might be time to clean the throttle body and re-set the base idle. Definitely check for vacuum leaks. Remove the snorkel from the air mass meter to the throttle body and check for tiny cracks in the corrugation. Clean and lubricate your constant idle motor (on the support bracket for the intake manifold, below the throttle body) and check its hoses for cracks or leaks. If the idle is high, it's most likely either the CIS motor or a vacuum leak.
DS