2004 Silverado 4.8 Z71
120191 miles on truck
740 miles on oil
Out, M1 5W-30 - M1-107A filter
In, Supertech 5W-30 Syn HM - Wix 51042 filter
Trying to see if I can get the oil pan gasket to stop it's very, very slow leak. I don't drive this truck a lot, oil was a lot darker than I would have...