Drop In Filters
#11
This is my UOA w/ an open element true flow foam filter on my intake. The silicon number is what you want to look at for dirt contamination and it is a little higher than universal averages, but still fine. The report can also be seen here http://www.bobistheoilguy.com/forums...94#Post1579494 along w/ comments from other members on the site. Judging from this report and some others w/ foam filters I think they filter well enough as long as they are properly maintained, the foam is thick enough (about an 1" thick), and they are 2 stage foam like the true flow.
I am going to get another sample after this oil change. I used conventional instead of synthetic this time.
#13
http://www.amsoil.com/catalog.aspx?code=EAA176-EA that is what they show for the 09 hemi as the filter. I recommend the AEM dryflow if you want a dry filter.