What he seems to fail to understand is, it doesn't make a fart in a windstorm how much the oil pan holds. If the engine has a dipstick, just fill it till it reads full. Makes no difference if the pan holds 4 quarts or 400 gallons.
I agree with a big IF!
IF original dipstick, dipstick tube, and oil pan and or windage tray, are all being used TOGETHER only!
If not, I'd put no more than 6 quarts in, period!
You never want to over-fill the oil!
