My oil pressure gauge has randomly started to read pretty low (white mark above the red) if I have to sit for a long period of time. When I start going again it will raise up to the halfway point and hang out for a while. I've read that the stock gauges are horrible but I'm wondering if the gauges are bad or is the sending unit going bad. I don't want to spend my money on gauges and pods (rather spend it on gears and sound system) so I'm wondering if replacing the sending unit would help me out.