My dealer also tells me that it takes 6. Depending on how much is effectively drained out when I change my oil mine takes roughly 5 1/2 quarts. If I only use 5 after a while the oil light will come on. Bottom line - the 4.6's definately hold more than the 5.0's
Brett
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66 Tahoe Turquoise Coupe
Laser Red 96GT Ragtop
30 Years & 30 inches apart in the driveway!