oil in fuel filter housing

[BigRed2]

I'm new to this site, seems very informative, my question is my truck quit running the other night acting like it was running out of fuel,I had just filled up earlier in the day and I just did oil change a week ago so didn't think it was low oil. Anyhow went to check fuel filter and it has oil in the housing, not straight oil but mixed with fuel, so I check the oil 3 gallons low obviously why it shut down. Any ideas about how that quantity of oil is getting in the fuel bowl? any info is greatly appreciated-thanx

[jesilvas]

Internal injector problems sounds like. but I

[LBSRACING]

I would guess a cracked head. allowing oil to get into the return system.

[BigRed2]

thanx for the responses, going to my mechanic tomorrow

[underdog II]

Injector o rings, no? O rings letting oil bypass injector into the fuel side of injector, I would check the o rings first before mentioning cracked heads to the mechanic, wouldn't want him pulling heads before ck o rings.

[ianstew]

definatley Injector O-rings....allowing pressurized oil from the HPOP to backfeed into the fuel system, pull the injectors, re ring, put back together. rings run 80-100 bucks.

[BigRed2]

thanx I was thinking the o-rings also, just seemed like alot of oil, I just replaced the injectors last year, but I guess seals can fail at any time it didn't go to the mechanic so I might try seals first thanx again for the responses I appreciate it very much