Everyone clamors for a 1/2 ton diesel when they bring them out they barely sell them. Also I think 5-6 yrs ago president Toyota North America said no diesel in the tundra. Was rumor they were going to put turbo charged v6 in the tundra but that was supposed to happen 2-3 yrs ago. See how far that went..
I guess they are content with their 10 MPG V-8... The new style Tundra's are land yachts, they would have benefitted from diesel power. That or the twin turbo charged v-6 isn't a bad idea.