I would take only the required amount of oil to a mechanic if I ever go for an oil change again. [/quote]
For years I did all my oil and filter changes, but due to my age and medical issues, I now bring my vehicle to WalMart. At WM, I am able to watch the entire process, and talk to to the oil tech as he is working on my vehicle.
My vehicle takes 4.5 quarts with filter, but I pre-lube the filter (bought eariler), so it takes about 4.25 quarts.
THIS IS IMPORTANT! I give the WM oiltech my 5 quart jug, of which I removed (at home) .75 of a quart, thus he has exactly the correct amount of oil needed for my vehicle.....and I ask him to return to me the empty 5 quart jug.
Works every time, and there is never an overfil.