I changed my motor oil and filter today on my 2019 Grand Caravan and was only able to add 5 quarts of oil to the engine and dipstick showed full. The manual says 6 quarts. ( i ran it for awhile and rechecked the oil level) dipstick still says full with 5 quarts. i dont want to overfill it. i poured the old used oil back into the bottle and it had nearly 5 quarts in it. Anyone else experience this ?