It's a 2AR—FE.
PVC replaced with OEM, made no difference.
Absolutely no leaks.
Never smokes on start-up.
So...do you think it's only consuming oil at lengthy trips of high speed? Again, it's driven lots of miles, all highway of about 70mph.
Rate of oil consumption has not changed for at least 50k miles.
If only burning when it's at speed and never smoke at start-up, would 0w-30 make more sense...at least keeping the 0w part of Toyota's recommendation?
(I know 0w-30 can be hard to find, but we'd just try Amsoil SS since we already use their small engine stuff for our business equipment)