I hate people who put oil filters on with a wrench. WTH is wrong with them - do they think it needs to be so tight it will take a cutting torch to get it off? Just changed hydrostatic oil in my zero turn mower. It has two filters. I mashed them pretty bad getting them off; thankfully they finally started to turn, ever so slowly. There's just no need for that. These were OEM filters, too! Must've been installed by a Sumo Wrestler in China.