I picked up a few Luberfiner (that IS what you were refering to, isn't it?) filters on RockAuto closeout a few months ago for my Jeep. These would be the Fram ST16 equivalent. While their larger truck and ag filters may be wonderful, these appear to be rebadged E-core filters, also being early E-cores that had the large gaps in the plastic cage. Yes, I'll use them, but it will be during the summer when cold temps are high.