What is the Difference in Demand Drive Fluid and Angle Drive Fluid: Polaris Front Gearcase Noise After Oil Change

Recently we were changing the front differential fluid on a 2012 Polaris Sportsman 800.  Some folks suggested using Angle Drive Fluid and that it replaced Demand Drive Fluid.  The Owner's Manual makes no mention of this fluid, so after much research and looking at the fluids, it's apparent that these two oils are different in every way.  Watch the Comparison.

Polaris Angle Drive Fluid is made for the earlier model Polaris 4x4 ATV's that have the electrically actuated hub assembly.  This means the AWD system engages at the hub assembly or similar to a old pick-up truck that you have to get out of and lock the 4wd system in at the center of the front wheels.  The front diff on these style quads use the Angle Drive Fluid, which appears to be the same consistency and very similar to a gear oil.

Polaris Demand Drive Fluid is formulated for (approximately) 2004 and newer Sportsman's that the AWD (4x4) system engages in the front differential.  This fluid is much thinner and resembles hydraulic fluid.  The Demand Drive Fluid is clear and very thin as you can see in the video.  Some folks have ran Angle Drive Fluid in the newer center actuating front differentials with no issues, while others report the fluid made their front gearcase make a loud popping noise and ultimately break down.