donjetman
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For my full flow filters, I use Fram Ultra oil filters from WalMart whenever possible and have for many yrs. I cut open my filters when I change them and have never seen an issue with the Fram Ultra. I do used oil analysis too. I've never had an oil filter problem.
I run an engine oil bypass filtration system on the Yukon and my FJ Cruiser.
Here is a video and they have cut open the Ultra, Tough, HighMileage, and the lesser Extra:
I run an engine oil bypass filtration system on the Yukon and my FJ Cruiser.
Here is a video and they have cut open the Ultra, Tough, HighMileage, and the lesser Extra: