Final question Gilly:
When replacing the cap after installing the new cartridge (which I assume just goes right into the canister) should the cap be re-tightened using the tool, or like other filters be placed on 'hand tight'? If the tool should be used, how tight should the cap be? I've seen other recommendations on this forum for using a torque wrench on things like the drain plug. I don't have any problem using a torque wrench if you think that it's important.
I'm not being knit-picky with these questions I promise. I just want to learn to do it right the first time and every 3,000 miles thereafter.
Thanks again Gilly,