I have always wondered what is the difference between different brands of filters? Well, I thought the article in the last TDR magazine was great. Does anyone use Autozone/Deutsch filters. I was a bit skeptical of them at first but then this article came along and it seemed to tell us that they were quality constructed filters. The price in my area (OH) seems to be the same for the Fleetguard (which i'm running now) and Deutsch. The thing about Deutsch is that they're always in stock and the parts store is open til 9:00. Let me know what your runnin' and what kind of luck you've had.