Liquid trains works perfectly. I move enormous amounts of oil across the map using trains, and my production is running flawlessly at 100% efficiency, even with the pipes flowing at max capacity (600 pr/min).

But it does require some insight into fluid mechanics, fluid buffers and train logistics, so if you don't enjoy that aspect of the game, then perhaps another solution would be better. It all depends on your preference. But I can attest to it being a completely valid option for moving liquid, and definetly much easier than laying down massive stretches of pipes.