I was ordering some oil for my LX570 and looked at the filter that Amsoil spec's for the 1FZ and they show the EAO15 part number as fitting the 1FZ. This filter seems bigger than the normal 90915-YZZD3 filter. I then looked at the specs on all of the oil filters they sell and noticed the EAO26 filter has the same thread size, same gasket size, same everything except its over an inch longer than the EAO15 filter.
I have not read anything about anyone using the EAO26 filter. I only bought it because I had some reward points to spend with Amsoil and figured I would order it and find out what it looks like against an OEM filter.
90915-YZZD3 seems like the small filter
15600-41010 is the NLA filter and I'm betting the Amsoil EAO15 filter is the same size
EAO26 seems even larger (longer)
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I'm also still trying to figure out if the 90915-30002 Twin element filter will work on the 1FZ, or why its only meant for the diesel engines. Is the thread size the same from the diesel and the 1FZ?