I don't know. Just my opinion and belief, so if you guys do it differently, rock on to each their own. But for me, I think it is pointless to change the oil earlier that the recommended schedule. Psychologically, it may make you feel better and if it does then great, may be it is worth the extra dinero to do it.
However for me, synthetic oils, oil changes every 1000 miles, and some of the other ways people spend money is a waste. I think folks are looking for ways to be involved with their trucks and they get a sense of "customizing" it, even if it is just an oil and filter change with the oil of your choice.
If Toyota recommended that the oil be synthetic oil only, like a BMW or Porsche, then sure, we should be putting Mobil 1 in the Tundra, but if not, there really is no need to.
I recently put the metal sport pedals on my Tundra. Spent $30 on it. It looks pretty, but in no way significantly protects or improves the performance of my Tundra. But, I do feel good about install them, so it was worth the $30. Just my 2 cents.
