AC UltraGuard Gold Propaganda:
Oil is the lifeblood of an engine. Without proper oil flow, engines wear too quickly and perform poorly in the process.
The more filtered oil that evenly flows through, the better for the engine. "Differential pressure" is the measure of the oil's resistance to flow through the oil filter. The higher the differential pressure, the less oil flows through. In other words, a filter with a higher differential pressure will allow less oil to flow through at any given pressure.
Differential pressure increases during high RPM conditions and during cold starts when engine oil is more thick and viscous. When the differential pressure gets too high, oil can't flow through the filter easily, if at all.
Most of today's engines are equipped with a bypass valve to allow oil to detour around the filter when the differential pressure becomes too high. This is intended to protect the engine from oil starvation, but it also allows unfiltered oil to reach vital engine components. To reduce the occurrence of bypass, it's important to minimize the differential pressure of an oil filter.
Ultraguard Gold oil filters have been designed to do exactly that — minimize differential pressure — while providing superior filtration efficiency.
The difference is in the synthetic media.
Ultraguard Gold has 100 percent synthetic, wire-backed media with more small, consistently sized openings. This minimizes differential pressure and resistance to flow while filtering particles as small as 8–10 microns
The graph above shows that Ultraguard Gold filters nearly four gallons per minute of cold oil at a differential pressure of 10 PSID (typical bypass valve opening pressure). Compare that with the Wix Sport Truck brand, which filters only 2.3 gallons at this pressure, or the Mobil 1 filter that handles just 1.6 gallons.
With Ultraguard Gold, you ensure that a good supply of filtered oil is always going to your engine to effectively reduce wear.