2013 RX350 53000mi(next change 55k) wife's car driven gently for the most part in short trip stop/go suburbia.
I've been using M1EP 0w-20 for most oil changes. Dealer did 2 changes at 10k & 20k . I've been changing in the 5-7k range.
I usually just get the 5qt jug at Wal-Mart & then grab a...