BuildCraft version: 7.99.15
Forge version: 14.23.2.26.11
Link to crash report or log:
Singleplayer or multiplayer: Singleplayer

I tried to build a refinery by pumping oil into a tank and then pumping it into the refinery. I had a redstone engine powering a wooden fluid pipe going out into a tank. When I run the refinery, it makes fuel but it won't output into the tank. I have quartz piping and combustion engines powering the refinery.

Thanks for the report. That is actually the distiller as the refinery is not more. BC oil processing has been completely redone. Here is a basic guide about how the new blocks work: http://imgur.com/a/AXUOX

For your setup in short, you need to extract the fluids out the top and bottom :)

Duplicate of #3737 and #3950

Thanks!

I've been trying to fix this for hours and all of the guides are outdated.
Thanks @LuigiHutch