Hey fellas I have a 2010 Tundra with the 4.6L It calls for 0w20 I was able to get my hands on the Quacker State 0w20 Synthetic. I am guessing it will be fine? I change it every 6 months or 5,000 miles. My local Toyota dealer sells Mobil 1 I have bought oil there once and I did not get Toyota bottled oil