Oil is not inflated. American goods that involve oil might be inflated because of it, but oil actually is not.
Almost all American goods involve oil. It’s how the veggies and milk get to the supermarket as well as a key ingredient in everything plastic.
No, you’re right, oil certainly is a small cost in literally everything we have. But hey, there is always something that is a bit more expensive than usaul in any process, and it is quite remarkable to see so far, that oil has not really stifled the US economy. I certainly, if someone told me years ago about 80+ oil, would have predicted chaos. But that is econ for you, very hard to predict, and takes on its own life form.