Product Description Q&A FL2016 Oil Filter Q&A is an online brand of automotive filter, we have excellent professional technology, advanced production equipment, and production process, professional technical personnel, design, development and producing. Let every customer enjoy driving time safely and comfortably. From the Manufacturer They are designed to help protect against engine wear by screening out abrasives, such as carbon, sand, dust and bits of metal before they can get into your oil. Pressure-relief valves help minimize the chance of contaminated oil circulating back into the engine and also help maintain the supply of oil to the engine under extreme cold conditions or if the filter gets clogged. The outer casings are constructed of steel, “ironed” for a precise fit, painted to resist rust and include flutings to ease removal. The efficient filter media offers increased dirt-collecting capability and ability to capture more engine-harming particles. Silicone anti-drain back valves help prevent oil from draining out of the filter and engine when the engine is not running and resist the aging effects that an engine's high heat can cause.