Well, since there's no shortage of suggestions, consider this: Mobil 1's fine. Excellent motor oil, no question. Been using it in Hondas for decades. If, however, you are truly compulsive/obsessive about motor oil, "Toyota Genuine Motor Oil" 0W-20 (sold by your friendly Toyota dealer, of course), is bottled for TM by Exxon-Mobil and has an abundance of MoS2 (800ppm). A clever fellow could swap out the OEM stuff at, say, 5k, leave the MM unchanged, and re-fill the sump with TM's 0W-20. You get the best of both worlds: an early oil change and a boatload of MoS2 for your hot-rod 2-liter motor. (Again, only if you're obsessive/compulsive.)