That tank has a variety of coil options
- 0.15Ω SSOCC Ni-200 coil for temperature control devices
VG/PG = Vegetable Glycerin / Propylene Glycol = Main base ingredients for Ejuice.
VG is a thicker liquid / PG is a thinner liquid
It's a general consensus that VG is more for Vapor Density, and PG is more for Flavor, and Throat Hit (although in my experience, they both do great at both flavor and vapor).
Different juices come in different ratios (Max VG, 80/20, 70/30, 60/40, 50/50) are the most common, but any ratio can be attained if you DIY/Custom Order your own juices.
(This is a generalization)
VG is more for "Cloud Chasers" as it provides a smoother, denser vapor.
PG is more for "Flavor Chasers" as PG is supposed to inherently hold and enhance flavorings better than VG.
VG is used more for Direct-Lung hit Sub-Ohm tanks, and PG is more for Mouth-To-Lung hits on higher-ohm tanks.
Since PG is thinner, it wicks more efficiently than VG, making it more suitable for smaller tanks, that have smaller coils with small juice flow holes (like the Nautilus tanks), and Vice-Versa, VG is thicker and more suited for lager tanks with larger coils (like the TFV4 and Crown).
If you could, take the coil out and read what resistance it is. If it's the 1.2ohm coil, you'll need a higher PG juice to wick efficiently. If it's the 0.5ohm coils, a 70/30 VG/PG will probably work best. Kanger coils aren't overly friendly with high VG juices, the juice flow holes just aren't adequate enough for 80VG+. Also try adjusting your AFC (Air Flow Control). If you have a higher ohm coil and thick juice and wide open AFC, the airflow can actually "dry out" the coil faster than the juice can wick, giving you a drier, flavorless vape. Also ask your boss what ratio the juice he got you is (if it's not labeled on the bottle) and what the juice ratio was last time.