Command Line – Can I create (from Secure-Delete) a 1-pass write?

Looking at the help page, we say that using two of "-l" can make him make 1 pass. Can we use it with "-z" to make a 1-pass fill on zero?

Alias. using "sfill -l -l -z" should do what I think right? I do not want to run it otherwise.

Just want to make sure I can have it on my USB 3.1 FAT32 drive (reason? I want to create an image that can be compressed)