I have biodiesel made from pongamia oil (non-edible oil), and it is dark in color. How do I measure the cloud point? Usually, if I put a magazine behind the jar of biodiesel, I can read through it. When I can no longer read those letters, I would consider the biodiesel cloudy. For this biodiesel, I cannot read anything through it, because the biodiesel is simply too dark.
Also, is there a better way to manually test cloud point?
