I've used canola oil, but sometimes there's a wierd sort of fishy taste to it.
Same experience.
Same here, and people used to tell me I was crazy, until Chris Kimball (from ATK) mentioned it in passing on some talk show. Then all of a sudden, I was a genius.
I don’t remember where I read it, so it could be complete BS, but I recall something about how the US government doesn’t/can’t regulate olive oils and labeling from other countries, which is why we get lots of blends with misleading labels and all that, but they do regulate quite strictly what’s produced here, so of what we can buy here, the California-produced olive oils are more accurately labeled - something like that, anyway.