Originally Posted By: Chris11
I hear what you're saying. Believe me when I tell you that I always hand tighten the filter with 3/4 turn. It even says that on the sticker that comes on the AC Delco filters i've been using. Friends of mine like to use a wrench to tighten theirs when they do oil changes and I always tell them not too. I always tell them about how by hand tightening 3/4 of turn the way I do, when it comes time to remove the filter all the combined strength of the Greek Gods couldn't remove the thing without the help of a wrench.
Here's what I do so I can tell exactly how much I've turned the filter (originally saw this on Frams back in the 90s - no sure if they still have it). Take a black permanent marker (or one of those permanent white colored grease pen type markers) and draw 4 triangles (or squares or circles... whatever) on the can spread out evenly. Fill in two of them (that are on opposite sides of the can) so they are completely black.
Once the gasket makes contact, note the position of the triangle and if its colored in or not and then count the number of filled/not filled triangles as you turn the filter. So for example if I started with an "empty" triangle I should end on a filled in triangle: empty (start), filled (1/4 turn), empty (1/2 turn), filled (3/4 turn).
Tell your goofball friends that putting the filters on with a wrench is a great way to damage them either by smashing the gasket so flat that it leaks or by partially crushing the can.
Originally Posted By: cronk
Why don't you just get the cup style filter wrench that slips over the grooves on the dome end of the filter.
I used to use one on my GM v6's with about an 8 inch extension and 3/8 ratchet.
I've found those to be somewhat worthless. The cap doesn't always match up with the filters grooves, assuming the filter has a faceted end. They're useful you're buying the same brand of filter each time, but otherwise no so much.