It happned the middle of the summer and i run 5-30 conven. Valoline. I jsut got around to playin with it got pissed at it and threw it in the back of the shop i new i should have not bought a ford haha. I know it was not double ringed i used to work for a quicky lube style shop been there done that always check for that seen it happend way to many times.
Could have been to tight but i never had a problem before and i do the same hting every time jsut a get it good and snug. It didnt happen right after i changed the oil either it was about 2000 miles into the oil change.
It did the exact same thing to both filters too. Just blows the rign right out of the groove.