2004 Trailblazer LS 4x4, 4.2L:, 2016 ATS-V, 2014 CTS-V Wagon, 2018 Audi A7
Is it me? Second time I have changed the oil and filter in my 4.2L 2004. I replaced 6-1/2 quarts of oil and it is full. I understand our engines need 7 quarts. Why the difference with my engine?