I went to a new owner deal at the Toyota dealership tonight, and noticed a lot of the cars on the lot now have stickers showing the cars have 0/20 synthetic oil. The speaker for the service department mentioned that also, and said some 2010 Toyotas came with the synthetic, and some came with regular oil. My oil cap shows 0-20 and 5-20, so I am still not sure what it came with. When our truck was delivered ( I ordered it via telephone, then came in and paid a deposit in October and picked it up in December ), the stickers had already been removed.
Is there a definitive answer? Just curious really, but it would make a difference in the interval when I change the oil.