Mirroring Dennis post but adding it much easier to use the refrigeration.
It bends easier,flares easier and cost less.
I wonder if it would resist damage from vibration/pothole slams. It's not
as rigid.
Don't know where that fine line of to flexible or to rigid is.
Make sure it's routed safely. Protect all area of contact with
grommets/sleeves.
If you reuse an existing grommet that's no longer flexible can open it up a
bit.
Use a sealant to take up the space around the pipe. Both sides and don't be
cheap with it.
Make sure to clear the line with air after cutting it. Don't want any
debris in it.
Take your time. Do good work. Ask questions. Take photos before you take
anything apart. Use the old as a guide  measurements and shape. It's easier
to cut out the old in sections for removal.
Use a sharpie to make a line before cutting the old line. It will help line
things up if you need to check something.

Bill