Coolant might be able to wait another year or two. Plugs are typically changed at 60k.
Based on miles, most experts recommend (assuming you are keeping the car long term) to change the transmission, transaxle and differential fluids at either 50k or 60k.
So you may want to save all this to 60k and do it then. A 2020 will be due for brake fluid in 2025 as well. So maybe everything will come up next year?
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