This used to be hard and fast but....some motors, Asian Metrics for example maybe like a half liter. The Ecotec 2.4 varies along the length of the hatched area due to a main cap girdle they are fit with occupying/displacing irregular volumes vertically an yet is still a quart from top to bottom.
I'm sure there are exceptions to the most common value of a quart so peeing on each others leg would be pointless.
Do your study and report back.
What is that going to fix? (Besides a bunch of breaking a bunch of manifold bolts...) Are they cracked? Touching them will likely cause more problems than a little rust.
That's not what I was talking about.
I have not seen it specifically documented that bottom of the hatched area equates to "1 quart low".
I've never measured or compared a dipstick reading at the bottom of the acceptable range, added 1 quart, took a new reading and it be exactly at the top of the range.
My view of the manual is if it is BELOW the mark, add one quart at a time until the level is within the hatched area, 1 quart could put it 1/4, 1/3, 1/2 all the way there. I don't know, none of mine have been BELOW the mark to require adding any to find out.
However, if over 400 miles it takes multiple quarts to keep it in the hatched area, yes, that is a problem.
EDIT:
None of my vehicles have ever been to the bottom of the range, every check shows them give or take somewhere on the top half of range. (I might even challenge my own memory and say at worst the top 3/4s.)
Never to the bottom, much less below the "add" mark, so I've never added 1 quart to see how much it moves the level up the stick. Circling back to my point, the volume coming out is less than what everyone suggests my dipstick readings should be indicating.
If from the top to bottom mark of the hatched area equates to 1 quart of oil, I would see the dipstick reading (on every vehicle I've touched in the last 30 years) be at the top of the mark when I fill with new oil and be at the bottom just prior to changing; based on what I am measuring in the drain pan. However, the dipstick readings are NOT showing that amount of drop. See above.
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