Looking down the road to some maintenance on my new log splitter I'm wondering about the oil filter (hydraulic oil) The splitter's a Harbor Freight 8 hp, 24 ton, w/ 11 gpm 2 stage pump. Would the Hydr. oil filter be specific, or can I just take the filter to my local auto parts store & match up a fram or purolater? (matching the threads & the o-ring/gasket size of course.)