I asked claude to dig up the current Ford Bulletin for the engine in my truck to tell me the recommended motor oil. And it found the updated recommendations properly. I wouldn't trust google AI because I know specifically that the recommendations changed, and I don't want whatever the published specs were when the engine was first manufactured, which is out of date (and found on lots of low quality blogs). I don't even trust claude, but it gave me the URL to click on to verify and summarized it well enough that I mostly trusted that it wasn't using the cited technical bulletin and not a bunch of random AI-slop web pages.