I've been running M1 oil filter along with PP 10w-30 combo for quit some time now and the OCI is at 6000 miles. I know that the filter can go much longer than 6000 miles, however, I've been changing it every 6000 miles. I am wondering how many of BITOG members use M1 oil filter and at how many miles do you change the filter? Thanks!
-ttvr4
-ttvr4