How important is it to put oil on the oil filter seal/gasket before you put it on?

I usually apply oil around the filter seal before I put it on, but I forgot to do it this time I changed my oil. When I started my car I didn't see any leaks, but could something happen anyway?How important is it to put oil on the oil filter seal/gasket before you put it on?
Simply put, the oil is a lubricant to ensure that the gasket doesn't stick to the block when installing the filter(making it hard to turn). It ensures that you can simply hand tighten the filter without leaks. It doesn't aid in removal and is not a 100% necessary step.


NEVER install a filter with a wrench- you can damage the threads of the boss on the block.


As to filling the oil filter first, it is not a bad idea but is only really necessary on a turbocharged vehicle to get oil to the turbo as fast as possible after start up.How important is it to put oil on the oil filter seal/gasket before you put it on?
Some will say that the oil helps seal the filter. I suppose an argument could be made for that. However the reason I find to be most important is that when you tighten the filter, there is a possibility to rip or damage the rubber seal. Putting a little oil on the seal prevents damage to the seal while your tightening it. Same principal is used on the bead of tires when mounting them onto rims.


Not critical but a good practice.
The oil allows the filter to spin a little easier (and so you can tighten it a little bit MORE with bare hands).





If you don't see a leak don't worry.





====





It is NOT to create a seal (as many people think). If that was the reason, the oil seeping would seal itself.








Good luck...





P.S. If you must, just tighten it with a oil wrench another 1/4 to 1/2 turn (but do NOT over tighten. With a tool like oil filter wrench it will seem loose - don't over tighten)
well filter might be hard to get off also you should fill the filter with oil before you put it on so your engine doesn't have to start dry alot of people don't know to do this but you should always do this when changing oil


hope this helped
oil helps seal the gasket and is a standard practice however if you dont see leaks dont touch it till its time for new filter. like they say if it aint broke dont fix it