Difference between Amsoil ASF & SDF oil filters
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what's the difference between Amsoil ASF & SDF oil filters?
I got a hold of some oversized Amsoil filters for my rig and they are labeled SDF-34 and ASF-34. What the heck is the difference between the 2. Does SDF mean "severe duty filter"? TIA!
Last edited by humanoid; 05-04-2005 at 02:48 PM.
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