Super Duty Oil Filters
SDF Filters are composed of a special Cellulose, Synthetic and Glass Blend Media to provide longer life and improved efficiency. Performance tests demonstrated that AMSOIL SDF Filters provide over 75 percent better combined efficiency/capacity than other popular filters.
AMSOIL SDF Filters contain a combination of cellulose, synthetic and glass blend media to provide longer life and improved efficiency. An oil pressure relief valve assures proper oil flow at all times under all operating conditions. Each heavy-duty case has a drawn steel double-crimp at the base with rolled-under seaming. A proprietary elastometer anti-drain back valve keeps dirty oil in the filter when engine is not running.
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