NAPA Gold (on the left) oil filters outperform aftermarket and OEM alternatives with advanced designs, including heavy-duty housings, synthetic resin media, silicone anti-drainback valves, and high-temperature gaskets. They capture 99% of contaminants, protect during cold starts, resist collapse, withstand over five times normal oil pressure, and offer an industry-leading service life.

NAPA Gold oil filters (on the left/center) use glass media or a cellulose-synthetic media, achieving 95% efficiency at 10 microns, effectively trapping contaminants. Competitors use a filler media, with a stacked synthetic design, that offers slightly lower efficiency at around 90% at 15 microns. This can potentially allow more particles through, which increases the likelihood of engine.