Issue description:

Placing an Electric Pump (mekanism) directly over a pool of pneumaticcraft:crude_oil source blocks in the world does not register as a valid fluid to the Electric Pump. Pump reports "no fluid". Works as expected with other liquids.

Version (make sure you are on the latest version before reporting):

Forge: 35.1.36
Mekanism: Mekanism-1.16.4-10.0.18.445.jar
Other relevant version: pneumaticcraft-repressurized-1.16.4-2.9.2-116.jar

Im not sure if this issue is on you or pneumaticCraft

I am not able to reproduce this. I tried loading PNC (from their maven 1.16.5-2.9.6-130) in my dev environment and it seems to be working just fine

Seems to working for me now too, maybe the pneumaticCraft dev changed something in their update