The first filter was used on a 1997 Saturn SL1 SOHC for about 3,000 miles over the course of 12 months. Oil was Havoline High Mileage. Here's the second filter. It was used on a 2002 Ford Windstar 3.8L for about 5,000 miles over the course of 9 months. Oil was Castrol GTX Magnatec.