How does the quality of Royal Purple Extended Life Oil Filters compare with other manufacturers’?
Do Royal Purple Extended Life Oil Filters meet all original equipment requirements and vehicle warranty?
August 17, 2018What is the recommended change interval?
August 17, 2018How does the quality of Royal Purple Extended Life Oil Filters compare with other manufacturers’?
Royal Purple premium filters use 100% synthetic micro-glass media for superior particle removal with 99% filtration efficiency at 25 microns and larger, and 80% of particles 10 microns and larger.