Royal Purple, the makers of that super-slippery line of lubes (including their Max Tuff engine assembly lube that I love so much) has added a line of high performance engine oil filtrs to their lineup. The new high performance oil filters combine advance micro-glass technology  and high capacity with optimized flow characteristics for maximum performance and filter life.  Each Filter features: 100% synthetic micro-glass media for superior particle removal with 99% filtration efficiency;  a high performance silicone anti-drain back valve that prevents dry starts even in extreme conditions;  a heavy gauge steel back-plate for maximum burst strength; an extra heavy-duty nitrile-rubber base gasket with special lubricity compounds to reduce torque during installation and ensure a leak-free seal; and an ultra-strength filter housing that provides extra protection against puncture from road debris.   According to their release, Royal Purple oil filters allow change intervals to be extended up to 12,000 miles. Vehicles still under warranty should follow the vehicle manufacturer's recommended filter change intervals.  While Royal Purple filters are fully compatible with all synthetic and conventional oils, Royal Purple recommends using their high performance engine oil which also has a 12,000 mile life. Royal Purple high performance filters are currently available exclusively at Pep Boys.  The filters will be available at other auto parts retailers this November, 2009.