If you think 6 quarts is a lot, a friend of mine has a 2007 Porsche 911. It holds 12 quarts (2.5 gallons of oil). There's 4 quarts in the pan and another 8 quarts in a separate oil reservoir. Side story - he use to have a 1986 911 that he purchased in 1991. After buying the '07, he actually sold the 1986 911 for more than he purchased it for in 1991 ($8,000 profit).