I was checking out frams website (I wanted to know the micron ratings of their filters) and noticed this:
Fram Double Guard Oil Filter
"-96% single pass efficiency media and PTFE engine treatment combined in one premium filter, to trap harmful particles on the first pass - before they reach a vehicle's engine."
(http://www.fram.com/products/oilFilters.php)
It has a NEGATIVE 96% single pass efficiency. wow....just wow.
Fram Double Guard Oil Filter
"-96% single pass efficiency media and PTFE engine treatment combined in one premium filter, to trap harmful particles on the first pass - before they reach a vehicle's engine."
(http://www.fram.com/products/oilFilters.php)
It has a NEGATIVE 96% single pass efficiency. wow....just wow.