4WD
$50 site donor 2025
Never heard of 4 psi.Very nice truck! I am considering the same.
I am going to be the odd man out here and seriously question the relationship between engine failure and supposed debris. I believe it is a possible lack of oil flow, related to operating the engine with 4 PSI of oil pressure under low RPM, modest load conditions, which (at least in some cases) damages the front main bearing before anything else.
One press quote: "Toyota has not yet determined the fix for the engine debris" seems to indicate that simply introducing a cleaning step won't fix the issue. And as of last month, Toyota itself says: "Toyota is currently developing a remedy for this problem".
To me, one big clue that it's not debris, is that the main bearing spins and STICKS to the crankshaft. Debris typically wipes out a bearing and destroys it. Lack of adequate lubrication typically overheats a bearing and causes it to extrude some "fines" stick to the crankshaft and spin. The two forms of failure are often very different.
I am in the market for a new truck and am looking at the Tundra. If I do choose a Tundra, I will make sure to have adequate factory warranty coverage and would likely purchase an extended policy. Along with choosing the highest quality oil and frequent changes. Today, Ford uses rubber oil pump belts, GM and Ram still have lifter issues, Nissan is a has-been and it seems almost every choice has some risk. The one engine that seems robust is Ford's 3.5EB, but having owned one, I would prefer anything else due to sound and feel as mine sounded like a UPS truck, groaning when under high load on long trips.
My variable pumps jump from 30 psi to 75 psi with throttle position.