[C320-list] C320-list Digest, Vol 3581, Issue 2

[Christian]

"Then filter the fuel with an aircraft filter, change O rings on the fuel
cap regularly"

I've seen this mentioned before.  I fill my tank with a can from diesel
bought on land.  I've always wondered if I should be filtering from can to
the tank.  Searching has yielded me nothing.  Have a link to a sample
aircraft filter for an example?

Also, ideas on where to get fuel cap replacement O rings for a 1994 C320?

Many thanks.