AMSOIL Issues Reminder on EAO Oil Filter Use in Toyota’s

AMSOIL Inc. has released a reminder on the use of their EaO oil filters in Toyota applications. Here is the company statement:

March 17, 2010

As previously announced, the AMSOIL EaO09, EaO10 and EaO57 oil filters are no longer recommended for Toyota, Lexus and Pontiac vehicles with Toyota-built engines. Dealers should contact any customers using these filters in the above-mentioned applications and advise that the filters be removed. MANN oil filters are available for these applications, and they are recommended for 7,500-mile filter change intervals when used in conjunction with AMSOIL motor oil.

When using AMSOIL EaO09, EaO10 and EaO57 oil filters with Toyota, Lexus or Pontiac vehicles with Toyota-built engines, the oil pressure light may illuminate prior to reaching the end of the AMSOIL-recommended 25,000-mile drain interval. To protect the engine, the OEM engineered the oil pressure sensor to trigger the oil light when there is insufficient oil pressure to maintain an adequate level of protection. Each filter is equipped with a by-pass valve, so when the filter is at or close to capacity, the engine is continually supplied with adequate lubrication oil, although unfiltered. However, if the filter reaches maximum capacity, the level of restriction can become significant enough to trigger the oil pressure warning light. In extreme situations, oil starvation can occur. Premature oil filter capacity can be attributed to a number of factors such as poor air filtration, a leaking air intake system or excessive contaminants being produced in the combustion process.

For more information, see the EaO Filters – Toyota Applications Technical Service Bulletin, or contact AMSOIL Technical Services at (715) 399-8324.

Check the AMSOIL Online Lookup Guide for the most up-to-date application information.