"Insurance", that is the primary benefit I see here. Less pressure, higher capacity in the event of some cooling related problem. I may never be able to detect any substantial change from a water based system. As I now live in a freeze area, I would have to drain the water and run
antifreeze come winter, with this I can run year around.
If you recall, in my "famous build thread" I used Marvel Mystery
Oil to install the pistons/rings in the block. Boy did THAT meet with high drama as the debate raged on about what a screw up that was!!
No stranger to controversy here, like I said, I'm going in!!! By the way, the Marvel Mystery
Oil instead of engine to install the pistons worked out great, I'll never use
oil to install pistons again.