What could be the reason for my 2010 Honda Odyssey leaking oil?

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! GAH! That's a mighty big oil leak! Odyssey's tend to leak from valve cover gaskets, rear main seals, oil filter housings, and all other kinds of places for black gold to come out of! The best course of action is to steam clean or power wash the bottom of the engine, test drive it, and pinpoint the leak. Losing that much oil could be a fire hazard if it coats the exhaust and gets too hot. Be careful! If you have any other questions, please call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!