What he said :lol:. 6 is what it takes. Don't overfill, and don't fill to the top of the dipstick. If you dont want to get a new dispstick, just fill it with six and mark the dipstick. ALL mod motors take six quarts, the 4.6, 5.4 and V10. All you're gonna do by adding the extra 3/4 quart is get it sucked back into your throttle body and onto your intercooler
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