Yes. A little dab of GL-4 would maybe change the rating to GL-1.2 , since GL-4 doesn't have the additives that attack brass.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
, since GL-4 doesn't have the additives that attack brass.
