The dumbest question I've ever been forced to ask

[AzBob_imp]

The Honda oil filter wrench cap shown in the above diagram works and it is only $5.

But it most likely will only work on Honda oil filters -- which is OK for changing original factory filter. But the flutes on other aftermarket filters may well be different...

But it most likely will only work on Honda oil filters -- which is OK for changing original factory filter. But the flutes on other aftermarket filters may well be different...
The wrench also works on oil filters for most Triumph models, although it's a tad bit tighter.

If you put the wrench on straight and fully seat it, it won't get stuck to the filter, as someone mentioned might happen.

Im a mechanical klutz. So, When, like Mao Zedong, I decided to take the great leap forward and change my own oil and filter, I went to my small town hardware store and bought an adjustable strap wrench. It looks like this:



It did an excellent job of loosening the filter and giving it just a little tightening tweak.

Then, on the great adventure when Pterodactyl's K&N filter sprang a leak, I decided to remove the K&N filter that had been put on my bike—I had weakened and got the mechanic to change the oil while he was checking the valve clearances. I did not have my trusty strap wrench with me 3,500 kms from home so I bought a new metal adjustable wrench ...

.

It works OK too, although I'm not persuaded it's any better than it's rubber mate.

The problem with strap wrenches (rubber or metal) is that you can easily crush the filter, so be sure to have the strap very near the rounded top of the filter (just about where the wrench would go) -- it's a lot stronger there due to the compound curve making it a quarter sphere.