amsoil EaO64 filter for a chevrolet

[pheasanthunter]

I was wondering if anybody else noticed that the Amsoil EaO64 filter seems to have a relief valve located in the bottom of the filter. My Trailblazer has the relief valve located on the block and ever other filter I have used on my GM engines are smooth in the bottom of the filter. Any ideas? I have this question posted to Amsoil as well and I'm waiting for their response. Thanks!

 

[pheasanthunter]

I just got a response from Amsoil, very quickly I might add, and I was informed that the By/Pass valve location doesn't affect the performance of the filter in any manner. I am impressed with Amsoil's customer service up to this point. They responded to my other question just as quickly.

 

[Gary Allan]

This filter appears to be spec'd for pre and present '07 GM engines. Those don't have in block bypass valves ..or so I'm led to believe.

 

[pheasanthunter]

Thanks for the information! That would certainly make sense if the '07 don't have the bypass valve in the block. I wonder if the setting is relatively close to the ones that are in the block-- pre '07's. It seems as though I saw in another thread that the EaO64 specs said ...'Bypass Valve-- no, Anti DrainBack Valve--yes'. Perhaps they did change the filter for '07 GM engines.....