I did an oil change. Thought the car took 4.4 quarts but it only takes 3.7 quarts. I poured in slightly under 4 quarts. The engine is a 1.5 in-line turbo (Honda Civic Si). It’s reading past the fill line slightly. How bad is it? Do I need to pour some out? What am I risking? What symptoms should I be looking for?
The danger is the crankshaft will hit the oil and foam up. Start the engine run at some rpm for a minute then check for foam at the dipstick if okay do a test drive with sharp corners and check again - if no foam you are okay. If ther is foam drain some out and then let the engine / foam settle overnight before driving.
This is the way.
(I’ll just note that oil with bubbles in it does not look like an actual milkshake. If it looks like a milkshake, then bad things are happening.)