And also Eurostat has life expectancy info by educational attainment 🙂

Here is a recent (and excellent) article for the US. In the supplemental information (OSF) you can find the nDx by education and cause: jamanetwork.com/journals/jam...
I understand that also Sweden has it, but I haven't explored the information (www.statistikdatabasen.scb.se/pxweb/en/ssd...).