I didn't think of that - LOL!!! It has a kind of oily taste? Added more flavor, but it still didn't cover it - I got all my stuff from Wizard Labs...I'm going to try them apart and see what happens
VG taste kind of sweet by itself, fluffy and smooth. I wouldn't call is oily, but I could see how some might think that depending on how your vape test it.
PG tastes kind of dry, harsh in a way, and slightly band-aid or plastic like to me, or maybe hospital / care facility air taste is a better description.
Try each thing by itself, with nothing added to it at all (No flavor). Once you taste your VG and it's OK, taste the PG, then same once you know it's OK taste the Nic mixed with either the PG or VG but do that last after you tasted the PG and VG separately, so you can pinpoint which is giving you the off taste,
Did you taste in different devices? Different style tanks too, or is it all only one type of tank your testing with?