I usually only use Mann but Napa has a sale on Napa Gold oil filters for 70% off. There have been numerous times where I had to perform a short oil interval change and wished I didn't have to use my Mann filters. Now it won't hurt as much due to the price. From what I've read these are also a good quality choice and even have the internal plastic cage to prevent collaps. At $4.14 each I decided to stock up and bought 12. The sale ends today! What do you guys think of Napa Gold oil filters?