tried to start 2005 f250 6.0 today after setting for a couple of weeks was hard to start but did start and run for a few seconds then noticed oil everywhere the oil filter cap cracked and flew off sending oil everywhere does anybody have any ideal what the hell happened and why. I'm hoping thats all the damage

 

Was it an OEM filter and cap? If not get OEM only. If it was get a new OEM filter and cap. Possible defect or it was damaged.

 

If it is OEM, then the only thing I can think is you may have cracked it over tightening it.

 

Make sure you use a large 8 point socket, not a 16 point socket or a drive extension, this will crack the cap quickly. Also, torque value is important, this cap seals with a no ring, lube it and tighten carefully. Otherwise the cap breaks. I inspect mine every oil change very closely, as I am sure it fatigues over time.

 

I do believe OEM cap does use a O-ring on it. New O-ring comes with the Motorcraft filter. As mention before make sure you have a known good OEM cap. yours may have been damaged.

 

mhoefer put his space in the wrong place and is actually saying it does seal with an O ring. When tightening, tighten just till the cap bottoms out. The O ring seals not the threads.

 

What weight oil was in it???? Any additives???? What was the Air temperature? ?????

 

Thx 69CJ,, sorry for the typo. Yes the o ring is the seal.