I have a 2005 Tacoma and do not drive it more than 1k/yr. So, I go multiple years on each M1 0w20 oil change. (Yeah, the oil cap says 5w30, but 0w20 wasn't made then. I just use 0w20 in all 3 vehicles.) Oil never looks dirty.
Had a VW TDI for nearly 7 years. Went 10k on oil changes on it and also on our Mazda3 since 2016. However, we're not putting enough miles on either the 3 nor the Miata now. So, I'm going multiple years on their M1 0w20 oil changes. Strangly enough, the Miata and the Tacoma 2.7 L take the same oil filter.
Synthetic can go 15-20k miles and multiple years.