Originally Posted by jyasaki
Seems to me that a lot of auto/truck engines these days are aluminum, and I haven't heard of anyone using aluminum hardware to bolt them up - it's all steel hardware. So why is the issue you referenced not still a problem? Worded differently, why was it a problem in that instance?
No idea, but, as someone else mentioned, direct contact between such dissimilar metals was always a problem. As for nowadays, perhaps the surface treatments are more advanced. Perhaps they sleeve the bolt holes. Perhaps they are machined to a much more accurate tolerance. Perhaps it's a combination of several factors