Yesterday I received a call from the dealer that the 8 qt of oil that I provided for the 45,000 mile survive was not sufficient and they needed to add one more quart of oil to our 2010 XC70. The owner's manual list the oil capacity as being 7.8 qt. I realize that depending on how long one allows the oil to drain out of the sump will result in some differences but has anyone needed to add 9 qt of oil to their XC70?

My concern that adding 1.2 qt over the listed oil sump value would likely result in the crankcase being overfilled.