I let a garage change my oil and filter last time. I always do it my self but was just feeling lazy. Tonight I set out to do a simple 10 minute oil change. I bent my filter wrench. I used the time tested screwdriver method and bent one and still no movement. I brought out a monster screwdriver and finally got it to move about a 1/8 of a turn. Several holes and about 1 1/2 turns later I was able to get it loose enough to remove by hand. Never again!! I will always do it myself from now own. My Dad taught me how to install a filter when I was about 8 years old. It is too bad so called certified mechs can't get it right.