Synthetic blend vs regular oil

Unless counterindicated by the manufacturer for some reason, it should be fine.

The only reason I’ve ever heard not to switch between types of oil is if you’re in an old car that leaks a little bit of oil, and you want to avoid having it leak a lot of oil…like if sludge is the only thing keeping oil inside your engine.

Since this is the only kind of car I drive, I pick one kind of oil and stick with it.