on my newest purchases owner's manuals, they say "approximately" on the fluid refill amounts after oil change.
Reason I asked is my latest oil change was a generator. Manual said 1.4 quarts, I didn't need the second quart , it was running out the filler hole at a couple oz less than a quart. You'd think they could get closer on something that takes no more than that.
My '14 Tacoma doesn't take as near much as that one says either.
