diesel fuel in engine oil

gregatgr · 11-04-2009, 12:44 AM

we have a 2007 Dodge Ram 2500 6.7L Cummins diesel. We have been getting diesel fuel in the engine sump, 3-4 quarts every few months. we have checked for leaks in the injectors by using flourescent tracer die in the fuel, heavy load road test, remove valve covers and check with black-light but we are not getting any signs of tracer die. how can we doagnose where this fuel leak is coming from? there are no obvious wet fuel indications

**SOUTHERN SMOKE** · 11-04-2009, 12:55 AM

check injectors may have to get them flow tested, what about the return line? how much pressure? headgasket? it could be just the smallest issue, how is the truck running? hard start, rough idle? need a few more details.. you may have an injector sticking open after shutdown, this can overload a cylinder and melt it down, keep your eyes peeled open...

__________________
CLICK -------> GEORGIA CUMMINS CREW

gregatgr · 11-04-2009, 01:11 AM

have not checked return line pressure, truck is starting, running & performing perfect, no complaints from owner, has Predator/Dr Performance power module installed, not sure what model, truck is used fairly regularly to line-tow vehicles in crash barrier tests as part of their businees operation, so under short severe loads

***clark4131*** · 11-04-2009, 09:54 AM

If you have your EGR and DPF are intact, it's likely coming from the regen cycle when the DPF is burning off. Intact 6.7's like to grow oil...SC

__________________
'08 2500 Mega SXT, Smarty 6.7ME, MHP TCM, EDGE Insight, AirDog II-165, BMK-21, S&B Intake, GDP Intake Horn/TV Delete/Fuel Filter Delete, Bilstein 5100's, HBS Level Kit, EGR MIA, Stealth DPF/NOx, Mag-Hytec Tranny & Rear Diff Pans, Thuren Trackbar, DSS Steering Brace, RCX Dual Bilstein Stabilizers, Fusion Front/Fab Fours Rear Bumpers ...

blackmega3500 · 11-04-2009, 05:53 PM

I am not going to say I am positive but I have read around hear of other people having the same problem and this is "supposedly" the result of the fourth injection cycle that takes place during regen.

__________________
09 Black mega 3500 3.73 DRW 6.7l auto. Smarty sw9, dpf mia, S&B dry, Edge for gauges, Shibby stg 2 intake horn, Shibby boost tube, Airdog 2, Shibby Throttle valve delete, bod ewg, MHP stg 2, Shibby grid heater delete, rail plug

Drbrodent · 11-04-2009, 06:32 PM

Its true, my truck used to make oil....diesel in the oil, deleted the EGR....problem solved!

__________________
2007 2500 6.7, 68RFE, H & S stage 2 DPF delete, H & S EGR/EGR cooler delete, Smarty, Edge Insight, 2" HBS, 33" Toyos on 18" wheels

socodieselpower · 11-05-2009, 09:10 PM

yeah i would say cylinder wash for sure. mine makes about two quarts per 5k miles i drive.

__________________
2008 6.7l 2500 4x4 slt 68rfe. procomp 4" lift 17''moto metal 954's 285 70/17 hankook gutted tube modified canootervalve and a carseat. stockish as long as i'm married or making payments

600Micro · 11-06-2009, 12:12 AM

Yep, Regen.

No regen no dilluted oil

11-04-2009, 12:44 AM	#1 (permalink)
gregatgr Newbie Join Date: Nov 2009 Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts gregatgr's Truck Pics	diesel fuel in engine oil we have a 2007 Dodge Ram 2500 6.7L Cummins diesel. We have been getting diesel fuel in the engine sump, 3-4 quarts every few months. we have checked for leaks in the injectors by using flourescent tracer die in the fuel, heavy load road test, remove valve covers and check with black-light but we are not getting any signs of tracer die. how can we doagnose where this fuel leak is coming from? there are no obvious wet fuel indications

11-04-2009, 01:11 AM	#3 (permalink)
gregatgr Newbie Join Date: Nov 2009 Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts gregatgr's Truck Pics	diesel fuel in engine oil have not checked return line pressure, truck is starting, running & performing perfect, no complaints from owner, has Predator/Dr Performance power module installed, not sure what model, truck is used fairly regularly to line-tow vehicles in crash barrier tests as part of their businees operation, so under short severe loads

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11-04-2009, 12:55 AM	#2 (permalink)
SOUTHERN SMOKE GA CUMMINS CREW PREZ Join Date: Dec 2007 Location: ROYSTON, GEORGIA Posts: 4,324 Thanks: 9 Thanked 115 Times in 77 Posts SOUTHERN SMOKE's Truck Pics	check injectors may have to get them flow tested, what about the return line? how much pressure? headgasket? it could be just the smallest issue, how is the truck running? hard start, rough idle? need a few more details.. you may have an injector sticking open after shutdown, this can overload a cylinder and melt it down, keep your eyes peeled open... __________________ CLICK -------> GEORGIA CUMMINS CREW

11-04-2009, 09:54 AM	#4 (permalink)
*clark4131* Aim For The Brain Join Date: Sep 2008 Posts: 606 Thanks: 1 Thanked 17 Times in 17 Posts clark4131's Truck Pics	If you have your EGR and DPF are intact, it's likely coming from the regen cycle when the DPF is burning off. Intact 6.7's like to grow oil...SC __________________ '08 2500 Mega SXT, Smarty 6.7ME, MHP TCM, EDGE Insight, AirDog II-165, BMK-21, S&B Intake, GDP Intake Horn/TV Delete/Fuel Filter Delete, Bilstein 5100's, HBS Level Kit, EGR MIA, Stealth DPF/NOx, Mag-Hytec Tranny & Rear Diff Pans, Thuren Trackbar, DSS Steering Brace, RCX Dual Bilstein Stabilizers, Fusion Front/Fab Fours Rear Bumpers ...

11-04-2009, 05:53 PM	#5 (permalink)
blackmega3500 Cummins Nut Join Date: Aug 2009 Posts: 318 Thanks: 5 Thanked 16 Times in 14 Posts blackmega3500's Truck Pics	I am not going to say I am positive but I have read around hear of other people having the same problem and this is "supposedly" the result of the fourth injection cycle that takes place during regen. __________________ 09 Black mega 3500 3.73 DRW 6.7l auto. Smarty sw9, dpf mia, S&B dry, Edge for gauges, Shibby stg 2 intake horn, Shibby boost tube, Airdog 2, Shibby Throttle valve delete, bod ewg, MHP stg 2, Shibby grid heater delete, rail plug

11-04-2009, 06:32 PM	#6 (permalink)
Drbrodent Cummins Nut Join Date: May 2009 Location: Utah Posts: 390 Thanks: 26 Thanked 34 Times in 28 Posts Drbrodent's Truck Pics	Its true, my truck used to make oil....diesel in the oil, deleted the EGR....problem solved! __________________ 2007 2500 6.7, 68RFE, H & S stage 2 DPF delete, H & S EGR/EGR cooler delete, Smarty, Edge Insight, 2" HBS, 33" Toyos on 18" wheels

11-05-2009, 09:10 PM	#7 (permalink)
socodieselpower Cummins Fanatic Join Date: Nov 2008 Location: Calirado Posts: 113 Thanks: 10 Thanked 4 Times in 2 Posts socodieselpower's Truck Pics	yeah i would say cylinder wash for sure. mine makes about two quarts per 5k miles i drive. __________________ 2008 6.7l 2500 4x4 slt 68rfe. procomp 4" lift 17''moto metal 954's 285 70/17 hankook gutted tube modified canootervalve and a carseat. stockish as long as i'm married or making payments

11-06-2009, 12:12 AM	#8 (permalink)
600Micro Newbie Join Date: Apr 2009 Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts 600Micro's Truck Pics	Yep, Regen. No regen no dilluted oil