this is a little late but sears makes a three pronged filter wrench with a hole in the end for a ratchet, i have one i use at work and i love the thing. unless its a canister (paper) filter, i can gurantee youll get it off, it failed me on one oil filter since i got it and thats only because the filter was on so tight i ended up crushing the filter. i think its like five bucks, ill try to find ya a link