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TractorLegend · 07-10-2005, 02:05 PM

It's funny you mention filters: I have an apprentice/ job shadow fellow working at my auto shop. For a class project we/ I / him thought it would be interesting to cut open oil filters to check out the differences. I remember in my starting years you could cut open a Fram and it had minimal, cheesy looking media.
He obtained several filters: AutoZones cheapest Autovalue? line , Fram, STP, Motocraft, factory Subaru. and a couple others.
Obviously I couldnt determine micron ratings, but we felt based on visual specs that there wasn't a nickels difference anymore between them. Even the cheap ones had some fashion of check valving type of sealing in the filter. The material they used on the Ford ones appeard to be silicone as opposed to black rubberish material but the filter still had this device.

07-10-2005, 02:05 PM	#3 (permalink)
TractorLegend Platinum Member Join Date: Jun 2005 Location: Normandy Park, WA and Randle, WA recreation property Posts: 835	Re: Noob oil question It's funny you mention filters: I have an apprentice/ job shadow fellow working at my auto shop. For a class project we/ I / him thought it would be interesting to cut open oil filters to check out the differences. I remember in my starting years you could cut open a Fram and it had minimal, cheesy looking media. He obtained several filters: AutoZones cheapest Autovalue? line , Fram, STP, Motocraft, factory Subaru. and a couple others. Obviously I couldnt determine micron ratings, but we felt based on visual specs that there wasn't a nickels difference anymore between them. Even the cheap ones had some fashion of check valving type of sealing in the filter. The material they used on the Ford ones appeard to be silicone as opposed to black rubberish material but the filter still had this device.