Afternoon all. I realized today that, after years of browsing BITOG and testing different oils for different applications, I've become set in my ways as far as whats used. Amsoil XL goes in my 2011 Taurus, Amsoil Euro Classic goes in my 2015 Jetta, and Schaeffers 5w40 OTR Diesel oil goes in my 2017 Powerstroke 6.7. I do this because from the UOA'S I've seen, Amsoil and Schaeffers both offer a stout, robust oil for longer OCI's, not to mention i have close friends that are dealers for both, so access is easy. I'm wondering, however, if its worth it. For example, after buying a filter, the oil change on my taurus today was around $81 all in (Amsoil XL, Mobil 1 Extended oil filter). Realistically, I could probably do it for close to half that. Assuming money isn't an issue and I don't care enough to make the switch based on that, is it worth the extra coin I pay?