Originally Posted by
jik22
Better is subjective. Electric rely on a sender unit, whereas mechanical will use a tube to bring the measured fluid right up to the gauge. I go with electric as I'm more comfortable running wire to the cab than messing around with capillary tubing. My personal view is this is also safer as a broken wire will stop the gauge working, whereas broken tubing will give you a leak and lost pressure. I think mechanical is supposed to be more accurate though, but whether this is true and if so by how much, I have no idea...