Raises the global max_fluid_flow from 100 to 300, allowing pipes and pumps to move more fluid per tick.
Small changes concerning balance, gameplay, or graphics.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
The pump speed modifier (left at default) is overriding all pump speeds instead of doing doing nothing. So in modded runs, all pump speeds are wrong and different tiers of pumps have the same speed.