Autometer Phantom 0-100psi Mechanical Oil Pressure Gauge2 1 16 in. diameter, 0 to 100 psi, mechanical, Phantom series, oil pressure gauge. This Phantom gauge is designed for that Pro Street car, truck and street rod. It's a no nonsense, race quality gauge with a crisp, modern appearance. Uniform soft glow lighting along with the included red and green light bulb covers provide a personalized effect.