Review on Mobil 1 M1-209 Extended Performance Oil Filter: Pack of 2 Filters for Optimal Engine Maintenance by Victor Houser

I've been using Mobil 1 filters for a long time after seeing different brands of cutouts. Never had a problem with them. I recently sent an oil sample to Blackstone after running Amsoil through my Tacoma for 9600 miles (I use an M1-209 on my Tacoma 09 V6 for more capacity). Halfway I wanted to change the filter, but my hands didn't reach. The analysis came up with a thumbs up, the oil was clean with dirt found in it. I've done two desert trips in that time so I'm very happy with these filters and will continue to use them in all my vehicles.