2016 limited, 3000 miles at 5 months. I just looked hard at my owners manual and maintenance guide. Trying to figure out if my 4runner came with synthetic oil. So I can know whether to wait on an oil change or go ahead and put some Mobil 1 in there. No where does it specify synthetic oil, that I can tell. Can't imagine a 10,000 mile recommended change interval with Dino oil. Does anyone know if the 2016 comes with synthetic oil? I wouldn't even be able to add a quart if needed without that knowledge. The manual simply says to use Genuine Toyota Motor Oil, ILSAC GF-5 Multigrain oil, SAE 0-20.