For a Toyota mota, any oil will do (generally), I have customers that want cheap! They come back at 20 or 30 or up to 60k later......never had any issues with those engines, again done over 200k.....
If you want it to last forever, change it every 10k or 5k if you insist.
Don't use special low ash formulas designd for d.p.f vehicles. (usually expensive ones).
I used to change my car oil every 5000klms, mobil 1, what waste of oil and money....
My engine bearings wore, metal filings came out with oil at 170,000klm at 190 it was knocky as!
Rebuild..... Subaru warranty.......
A mate used to take my clean 5000klm oil and put it in his cars.... Tight ass!