SMALL NUMBER OF TOYOTA, LEXUS AND PONTIAC vehicles with Toyota-built engines have reported that their vehicles' oil pressure lights have illuminated prior to reaching the end of the AMSOIL recommended 25,000-mile drain interval. This is due to insufficient oil pressure required to maintain an adequate level of protection, potentially causing the filter to reach maximum capacity and causing enough restriction to trigger the oil pressure warning light. In extreme situations, oil starvation could occur.

Premature oil filter capacity can be attributed to a number of factors such as poor air filtration, leaking air intake or excessive contaminants being produced in the combustion process. AMSOIL no longer recommends Ea009, EaOlO or Ea057 filters with any Toyota/Lexus application, or with the Pontiac Vibe featuring the 1.8L or 2.4L engines built by Toyota. For customers operating any of the above listed applications, AMSOIL offers MANN Filters as an alternative to the Ea Filtration line. MANN Filters can be used for up to 7,500 miles when used in conjunction with AMSOIL Synthetic Motor Oil. When by-pass systems are used in conjunction with any of these applications, AMSOIL recommends changing the full-flow oil filters at OEM recommended intervals. If a MANN filter is used, both must still' be changed at 7,500-mile intervals.