I found this on search as I pulled the dipstick on my 2025 Sienna, first thing in the morning, cold, and found it to be above the fill mark, considerably. This happened over a 2 week period while really cold out. I'm thinking this van may need 3000 mile oil changes in the winter. The van has 3600 miles on it, and the first oil change was done at 1000 miles. I drove it in SPORT mode to get it fully warmed up, but it didn't clean anything out.
Is this normal for Hybrid Toyota's? It'll be warm this weekend, so I at least have an opportunity to change it.