Originally Posted By: LeakySeals
Is it ok to shake and pour right in, or do we need to wait after shaking? Thought aerated oil was bad, what happens on an overfill. Gets foamy, no lubrication.
Should we always shake the oil? How long was it on the store shelf? Don't know. If we have extra oil from an OCI, it may sit around for a couple months. Shake before using it to top off?
I'm curious about this too. I always shake, then pour in immediately. My guess is that while pouring in, the oil moves over enough rough edges in the valvetrain (in my case) on its way down to the sump to break up most of the entrained air. Plus, after I finish filling, I always empty my old oil into the container, put my tools away, then go wash up before I start the car back up. I'm sure this also gives the oil time to let some of the entrained air to escape.