Fuel Pressure Gauge Fragola 900003 (030 Psi Dry)

More about this item : Fuel Pressure Gauge Fragola 900003 (030 Psi Dry)

When reading fuel pressure, remember that a fluid filled pressure gauge will change its reading as the temperature of the gauge case changes (under hood temperature).

Because it is sealed to contain the liquid inside, a liquid filled gauge no longer compares line pressure to actual atmospheric pressure, reporting the difference.

Instead, it compares line pressure to the pressure inside the gauge case.

As the liquid in the case heats or cools, it expands and contracts, causing case pressure to change as much as 1 PSI for every 30 degrees temperature change of the gauge.

It features a 1/8 in.

Npt male thread on the back of the gauge.