I have changed my own oil my entire life. A dozen or so vehicles and countless hundreds of thousands miles and never had an oil filter gasket leak, except for the MO-090 on a Jeep 4.0. This is on two different jeeps and about 12 filters. When I changed oil yesterday I barely got the old filter off because I had to keep tightening it to keep it from leaking last time. This one is leaking also.