STP oil filters - from the world's most recognized brand and leading filter specialists. STP advanced Micro-Pore technology provides superior protection for longer engine life. This exclusive media holds more dirt than other nationally advertised brands. STP oil filters are saw tested for high multi-pass efficiency and capacity. Maximum cleaning power for maximum engine performance. Advanced technology filter media provides superior protection for today's demanding engines. Traps particles 4X smaller than the human eye can see. STP oil filters meet or exceed OEM fit and quality requirements.