I know this thread is about a 2.2L 5SFE, Just wanted to add some relevant input regarding the 1MZ and overfilling in general.
First an anecdote - On a 3.0 99 1MZ I run 1.5 QT overfilled after I hit top mark on the dipstick without ever churning oil even under the most aggressive driving. I leak/burn approx 500ml per 3000 miles with hard driving, most due to a leaking rear valve cover.
I was curious, so I dumped all the oil from a 2 QT oil accumulator into the engine (3.5QT overfilled - 8QT total oil in pan) while it was off, waited a good minute to let it all drain into the pain, and then started the car. It cranked as normal without any churning at idle. I didn't drive away until I gave time for the accumulator to refill the 2qts, because although I don't mind pushing limits, It may have churned if I drove it hard like that, I don't intend to find out - I simply did this to see if it would matter if I forgot to shut off the accusump valve, but it's relevant to this.
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It's important to realise just how much surface area an oil pan has when considering the effects of overfilling.
(keep in mind the higher up in the pan you go the more surface area there is). 1 Gallon of fluid (4 Quarts) spread over 1 square foot sits only 1.6 inches tall when the fluid is at static rest - 1 QT = 0.4 Inchess, or 1cm.
When cornering, accelerating, and braking, the oil does shift in the pan significantly - however you still only raise the surface of the oil wedge during by the amount you have overfilled when at rest. You also must account for oil sloshing as well.
To demonstrate this to yourself if you are curious - mark the dipstick full oil level with electrical tape securely attached around it (or another marking that wont disolve into the oil or come off the dipstick), pour in a quart of oil, wait 2 minutes, then measure the distance on dipstick from tape to the new oil level - that's how much closer overfilling by a quart brings the oil towards the cranks. It won't be much.
Then you take into account the distance between the crankshaft bolt and oil pans oem full level in inches, subtract the length of the cranks from the center of the shaft in inches, then take the remaining clearance in inches and divide by 0.4 - the number that comes out is how many quarts of oil it would take for overfilling to cause churning with a static oil level in a 1 sq ft pan. Take away a gallon for crank interference under slosh and you still never worry about overfilling your oil by a quart or two again.
TL;DR - Overfilling by 1 Quart of oil with a 1 square foot surface area of oil in the pan at the full mark means that the actual oil level in the pain rises only 0.4 inches, or 10.2mm above the normal fill level, nowhere near the amount needed to cause interference with the cranks and churning in these or most any motor. Overfilling by 2 QTS in the same pan raises it only 0.8 inches, 3 QTS 1.2 Inches, 1 Gallon 1.6 inches, etc. This doesn't account for the clearance to cranks under slosh so you can't just fill it all the way, but you can fill it a lot more than most people think. It's also worth noting that engine oil pressure is not affected by the amount of oil over the pickup as long as its fully covered, it's dependant on the engines rpm.