is it necessary to run a copper or stainless steel line for an oil pressure gauge. or, a nylon tube that autometer provided is fine?

 

ive been running a nylon for 2 years with no problems, but im switching to a copper in my new motor because I can

 

i used an old pice of braided stainless line for mine it was just the right size too. its hard to route to a pillar but if u have a civic or teg with the 2 guages around the cluster u can snake it through perfectly. but i recomend using an electric guage i didnt like the idea of hot oil sitting 4 inches from my knee. good luck