We can all agree without using this tactic that there is too much oil and the oiler dashes are unavoidable which make us die and get absolutely slaughtered..... but.......
If you wear a dragon scale helm and dragon scale mail + a pure white laurel + soaking whetstone, the oil dropped by monsters will do absolutely nothing to you. No fire. No poison.
I used this and went through the levels extremely easily. I dies three times because there is so much fired oil that I cannot see the oilers and they do this spin melee attack thing which has a giant range and I did in fact die due to this a few times, but.... still. Other than that, it was WAY too easy and way too fast with these trinkets paired with dragon scale.
Yah it needs fixing.
Sorry to those who I was complaining to, I was unknowingly wearing the laurel when I was immune to oil poison.
[edit]
I highly suggest making the fire from the oil stronger so that it cannot be completely taken out with certain gear combos, and to compliment this fix, nerf the amount of oil that the oilers drop (especially on the charges so it is avoidable).
I then suggest to keep it how it is currently with the 2 pieces of poison resistance armor + white laurel to make the player immune to poison from dropped oil. this way, Pure White Laurel now has a use :3
Sorry for spamming this forum with posts, but i guess getting these issues fixed is the whole purpose of it.