So whats the verdict on these? I have an oil change coming up in the not to distant future and am wondering if I should get the ESP stuff from the dealer or Amsoil 5w40 diesel oil.

Amsoil costs slightly more, but I don't really care since I do like 2 maybe 3 oil changes a year on this car. Probably 2 this year since I'm driving less.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200