but you're not going to like turning 1018
after using 12L14, and it won't matter what you use for lubrication. .

Anything you save in material costs is going to come out of you in
frustration unless surface finish (tearing) isn't a concern.

You might be wise to investigate other free machining materials, such
as
1117, or 11L17, especially if your purpose in abandoning 12L14 was to
improve on mechanical properties.

We are wanting to change over to 1018 because of cost. ANd I'm
learning all about this frustation. I spent 2 and 1/2 days trying to
get it to work with our soluble oil before I gave up