I have heard the same about the WIX filters. They are also the OEM for the NAPA Gold filters.

With the amount of oil saturation I get with my MB pushing the 300K miles mark, I find my K&N Filter handles the oil from the blow by better then the paper filter does.

TimK

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EPA 609 & 608 HVAC Certified
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83' 300D Turbo - 300K + Miles
00' 1.9L TDI Beetle
85' 6.5L Turbo, GV-OD, GMC Suburban,
67' 2.5L Diesel NA - Land Rover Series IIA

Here's what you do if it's so cold your diesel fuel gels. Smear some on some toast and stay inside until it warms up outside.