Not a tribologist but I switched to 0W-30 in my 2025 Mudbath TRD-Pro after following the break-in period with 0-W20. Changing the oil at 650 mi, 1600mi, 3000mi, 4100mi (which I believe is pretty close-ish to what Speed Jr had said he was going to do on his Tacoma) then switched to the 0-W30 at...