MySierra New member Joined Jun 30, 2016 Messages 3 Reaction score 0 Points 0 Location Thunder Bay,Ontario Jul 21, 2016 #1 I have a 1998 sierra and need to know if I need the vented or non vented cap as I want to buy a locking gas cap.
I have a 1998 sierra and need to know if I need the vented or non vented cap as I want to buy a locking gas cap.
