The attached transcript from The Drive’s podcast discusses Toyota’s recall of 270,000 Tundras and other models with the twin turbo 3.4 L V6. They have manufacturing debris inside the engine that causes a spun bearing. The solution is to replace the engines, but that may only be temporary. The reason for the debris hasn’t been determined yet. An added problem is that the hybrids aren’t included in the recall despite using the same engine. Quite a shock, considering Toyota’s reputation. The Tundra is a great truck otherwise, but you might not want one with the V6. Here’s the transcript.
Tester
I have read in a couple of articles about the debris left behind in some engine problems. The theory is that this debris was always present but had little effect in engines with larger bearing clearances designed for 10W30 oils.
The 0W20, 0W16 and 0W8 motors oils demand smaller bearing clearances less tolerant of the debris. So engines are failing prematurely because of machining swarf and casting grit that passed through in the past.