Hi,
I’m of the opinion that it uses as much as it uses. I use 60VG/40PG liquids with a single coil. Silky flavors, vapors are fine, I am satisfied with it. I use it in RDL, mostly around 0.8 ohm and 18-20 watts.
Nothing leaks anywhere, and I don’t have dry hits either. BP mods, or Cotton Clouds cotton.
Although I think a lot depends on the chosen set-up too.