Thanks, njjoe. I just got a fast callback from Nissan Regional, who confirmed Nissan's "special sauce" is the only thing they recommend and that's a DOT3 rated fluid.
And, oddly, that Nissan only recommends inspecting the brake fkuid periodically, they never call for timed replacements. Unlike most everyone else. So maybe they make the most unique and powerful special sauce on the planet. Damfino. Sears, $35 fluid change. Dealer, $130 fluid change. Special Sauce shouldn't be THAT expensive.
I'm familiar with DOT5. When I bought it for my primary car, I had to order it directly from the fleet operations branch of Dow Chemical, and it was the same fluid used in the F18 fighters. It has been in that car for 27 years now so you could say I know how it behaves. And, that none of my brake components have rusted or rotted from moisture problems in that time. Yes, I bleed out a spit of it every couple of years just to see what's in there. But I've also seen wheel cylinders (Ford) rusted badly enough to need service after only 5 years with DOT3 unchanged in them.
Of course these days, no one polishes rusty cylinders, they just sell you new one$. Which I hope are made of better metal.
Still, if almost all the other car makers and chemical houses say CHANGE THE FLUID...I have to wonder what Nissan is thinking.
Pass the special sauce, please. Oh, and fries?