Description Royal Purple oil filters provide superior particle removal, high-performance and optimized flow characteristics for maximum performance and longer filter life. Each filter features 100 per cent micro-glass media for superior particle removal with 99 per cent filtration efficiency at 25 microns. It features a thicker shell material for extra strength. The heavier shell provides extra security against puncture from road debris. The by-pass valve is designed to insure oil flow in situations of excessive filter element flow restriction. An extra heavy duty premium nitrile rubber base gasket ensures a leak-free seal and its special lubricity compound reduces torque during installation and removal. An ultra-strength filter housing endures higher burst strength than conventional filters. A high-performance silicone anti-drain back valve prevents dry starts by eliminating oil drain back during shutdown. Silicone outperforms and outlasts standard nitrile rubber in both extreme cold and hot oil temperatures. From the manufacturer Royal Purple Extended Life Oil Filter Royal Purple manufactures only one type of oil filter – the super-premium Extended Life Oil Filter, designed and engineered to match superior particle removal with optimized flow for maximum engine protection and filter life. Built smarter and stronger, Royal Purple synthetic oil filters continuously outperform in the toughest conditions. Superior Filtration The 100% synthetic micro-glass media we use to make Extended Life filters provides superior particle removal – with 99% filtration efficiency at as small as 25 microns. Design and Construction Advantages Each Royal Purple oil filter features thicker shell material for extra strength and extra security against puncture from road debris. Metal end caps provide each oil filter with a positive seal for filter element assembly. The center tube is designed to prevent filter element collapse. A 100% screen-backed synthetic media provides superior filtration while keeping flow restriction low. The by-pass valve is engineered to ensure oil flow in situations of excessive filter element flow restriction. A heavy-gauge steel backplate provides each filter with higher burst strength. The gasket made of premium nitrile rubber with special lubricity compound reduces torque during installation and removal. Finally, the silicone anti-drain back valve prevents dry starts by eliminating oil drain-back during shutdown. The anti-drain back valve is made of silicone, which outperforms and outlasts standard nitrile rubber in both extreme cold and hot oil temperatures. Conventional Filter Magnified 250 times, a microscope shows large spaces in conventional cellulose filtration fibers. The spaces allow larger particles to enter the oil stream and infiltrate the engine. Royal Purple Filter Royal Purple’s filter media uses the latest technology filtration system to catch particles as small as 25 microns. Important information To report an issue with this product,click here.