Quote:
Originally Posted by ThoR294
I remember seeing some articles about rating oil filters and K&N/fram were at the bottom. top were AcDelco and mobil1. *shrug*
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That's pretty curious because K&N and Mobil 1 are both made by Champion Labs and are virtually (if not entirely) identical besides the nut on the bottom. Champion also makes AcDelco, STP, SuperTech, etc. FRAM filters were unpopular for a while, so maybe you were just thinking of that.
Apparently now (2010-ish) Champion and the division of Honeywell that produces Fram/Autolite/Prestone stuff have both been purchased by someone else who is merging all the filter programs together so maybe things have/will change.