ECOGARD X5579 Cartridge Engine Oil Filter for Conventional Oil - Premium Replacement Fits Audi S4, A8 Quattro, A6 Quattro, Allroad Quattro / Volkswagen Phaeton COMPATIBLE with 2004-2009 Audi S4, 2004-2006 Audi A8 Quattro, 2005-2006 Audi A6 Quattro, 2004-2006 Volkswagen Phaeton, 2004-2005 Audi Allroad Quattro. BUILT for both SYNTHETIC AND CONVENTIONAL OILS. Proven to drive up to 5,000 miles between oil changes with confidence. GREATER ENGINE PROTECTION by optimally screening out 97% of harmful contaminants such as such as carbon, sand, dust and bits of metal before they can get into your oil. HASSLE-FREE INSTALLATION with included O-rings for housing and cap. INSTALLS EASILY with included instructions. Replaces: FRAM CH9690 Purolator L45579 WIX 57329 OE 079 198 405.