Yep, I've used them, but I can't tell if they're any good or not. I've never had an engine faliure that I could blame on a Napa filter.......I guess it would take some flow testing and comparison testing to figure out if they are of acceptable quailty or not......... :?:
I use them and buy NAPA Gold. I think they're made by Wix. On extended drains I use EA filters made by Donaldson for the brand of synthetic oil I use. Also have one engine I use the NAPA gold in with extended drain.So far no one makes the EA filter for it. Lots of miles on that engine in 6 years and no problems.
I've been using the NAPA gold filters as well. No problems to speak of. All in all, NAPA ususally puts out some pretty good products - better than some off-the-shelf parts I've used.