Took my wife's Lexus into Oil Can Henry's today (chain car lube place) for an oil change. Just out of curiosity, I asked if they had the specs on a 2014 Corvette Stingray. Mechanic told me they had 9.8 quarts listed for the Z51 and they would use full synthetic Castrol Titanium, which would be $148 for the oil change. He knew it was a dry sump and to get the oil up to temperature before checking the level. Also said they would have to drain it for 15 minutes. FYI.