There are several reasons your filter may leak. It might be the wrong filter. Did you oil the gasket before installing it. Did you over torque it (more than 1 turn after contact). Did you make sure the old oil gasket wasn't still on the engine block before installing the new filter. Could be a defective filter(bad gasket). In any case, better replace it to be safe, filters aren't supposed to leak. Better spend 3 to 4 bucks now than 3000 bucks later on a rebuilt engine.
The old oil filter gasket might still be stuck on the engine block. Having the two gaskets in place will not allow the filter to seat correctly causing a leak.
I am having the same issue, but more violent. Oil sprays out. Replace filter, add new oil, start car, filter seal breaks and proceeds to spray all the oil out again. What would cause that much presure?
Purchase the correct size filter and make sure is is a premium filter such as AC/Delco, Purolator, Wix, or Bosch. Remove the old filter and throw it away. Clean the mounting surface and look at is closely for any scratches or gouges. If it is clean and not damaged, apply a thin layer of oil to the gasket on the new filter or it can leak. Turn the new filter 3/4 turn after making contact with the mounting surface. No more than 3/4 turn or it can leak. You will not have a leak if you do this.
This leak can be the block, mount or as simple as the filter assembly seal itself. An easy way to isolate the condition would be changing the oil filter, starting the engine and checking for new leaks.
It could if you crimp the gasket. Best bet is to remove it and install a new one. Put a little clean oil across the rubber gasket and clean the filter area on the engine. Tighten it as hard as you can BY HAND. It won't leak.
The most common things would be a plugged fuel filter or a vacuum leak.
It would be best to get a new exhaust gasket.
Remove the old oil filter, check to make sure the old filter gasket came off and is not sticking on the mounting surface. Wipe the mounting surface clean with a clean cloth and inspect it for cracks or scratches. Apply a thin coat of oil to the new filter gasket. Install the new filter and tighten it 3/4 turn after it makes contact with the mounting surface, no more & no less. If you then have a leak and the mounting surface has no scratch in it then the leak is above the filter and running down making it appear that the filter is leaking when in fact it may very well be a valve cover that is leaking.
Its possible you didn't properly install the oil filter. ie its miss-threaded or not tightened properly or too tight. You may have also left the old gasket from the old filter on. Also if you did not apply a thin coat of oil to then new filter gasket it may leak.
shooting it with a gun
If the radiator was not fitted in properly or the pipes were not attached correctly, the radiator would leak.
Yesterday I had the same problem. I noticed that I was leaking water from under my filer. It is usually caused by a crack in the filter. I have repaired them in the past by disconnecting the entire filter, draining the sand and cleaning the filter out really well. After it is dry, apply a strong appoxy to the crack and let it dry. Reassemble the filter etc... and it is fixed. (only temporary) It will crack / leak again. That is just too painful for me to mess with anymore. I just spent $450 for a new filter. Much easier. Good luck, hope you get your leak fixed.