I usally use to use Quaker State oil filters because my uncle was a CEO of an affiliat company, costed around $7. But I started a job last month at a heavy truck shop and across the road is a Napa. With our company discount I pay under $4 for there proselect filter. Just wondering if there filters are any good. When I was in the city for school I worked at an automotive shop and thats all they stocked becasue they were the cheapest option for them.