Hmmm...not sure what the goal is here. If you suspect that your juice is gunking up your coils prematurely, then just try any other pineapple juice - I have never heard of the pg/vg ratio of a juice having any bearing on coil life...but that's just me.
My favorite pineapple juice is Epiclouds Mom's Pineapple Cake, which is max VG and very affordable at 23 bucks for a 60ml bottle.