Not true with all due respect. The proper level is at either the minimum dot ( not low) or maximum dot (not overfilled) and anywhere in between.
Oil consumption vs leak is normal on all engines including 4th generation Ecoboost, thus the common use of catch cans for direct injection Ford Ecoboost.
It’s quite normal to consume oil when driving constantly for hours at high speed. In fact it’s normal for these engines to consume about a quart or so depending on viscosity between oil changes approximately 5000 mi.
My question is where does the consumed oil go? Or what exactly happens to it?
I believe now that I’ve researched any normal blow-by is processed by the pcv to crankcase circulation and combusted in the cylinders but not sure.
Not exactly "proper" level but acceptable range.
Anywhere between the dots is considered ok for operation.
There is some discrepancy with ford dipsticks though.
If you look up what Ford says a 2000 5.4 holds (same for 6.8s) and put that much in...it will barely be past the low dot and into the safe crosshatch area.
Many like to have it on the full mark after an oil change.
So are we actually overfilling it?
I care little what Ford says but that gets us into a whole other critical debate about people having faith in manufacturer statements.
Some engines will use more oil when they are fuller than when no so full
Detroit diesels like 8v71 arr known for this.
They use a gallon quickly and then use very little.
I had a 40ft MCI for 3-4 years. I think it held 7 or 8 gallons!!!