TIP I saw years ago - instead of the traditional 'wetting' of the sealing rubber ring on spin -on oil and diesel filters using the respective fluid, carefully coat the seat surfaces with some general automotive grease, neatly wiped off by finger and then firmly hand tightened as suggested.
( of course before naysayers jump in ... dont let gobs of grease get inside the active filter area , I am saying just a finger coat on the rubber ring )
Rest assured, doesn't matter 6 month or 6 years later that filter will loosen off first time.





