When installing all sorts of oil gaskets - like oil pan gaskets, or those between the oil cooler and the oil filter housing, or between the latter and the engine - is it good or bad to slightly oil those gaskets before installation?

I know that it is a useful thing to oil the oil filter gasket, if you want to be able to unscrew your oil filter later on with ease.

But what about other gaskets? Heard contradictory opinions on that. Some say that oiling gaskets helps tightening them more evenly, thus improving the sealing effect. Others say the oil film reduces the sealing effect of the gaskets. What is your opinion / experience? Thanks a lot in advance!

Background: Replaced 22 years old oil cooler and oil filter housing gaskets just recently. Old gaskets became hard as plastic, BUT did seal hermetically (the area around them was completely dry) most of the time. Their only drawback - but a critical one - was that in extremely cold weather (like -30 Centigrade) they did a poor job and did let a lot of (like liters) of oil out when driving. New gaskets (which I oiled slightly before installation - just for the sake of experimenting) however showed a very thin film of oil around them the next day after installation. So now I am wondering - was I wrong with my oiling those gaskets, or is it just modern gaskets quality which are worse than the old ones...