WHY? and how does fuel get in the crankcase

[350r powervalve]

Was thinking about getting the new truck but reading alot about the engines getting 2 to 5 quarts of diesel fuel in the motors bottom end is it because of sulphur content or bad rings seating. I drove a new dually getting great fuel milege off the lieometer and thought that the new trucks were horrible on fuel but a guess it just depends on which one you get. I never heard of 6.0s getting fuel in the motors.

[centurycoronado]

Maybe this will help.....While it pertains to biodiesel, a bunch of the info is pertinent to your question...

Understanding the Post-Injection Problem - Biodiesel Magazine

[350r powervalve]

Thanks century about the above info you really know whats going on! But if the injections were a post event how does it run? And do you think you could possible change the inj. event later after the warranty is up?

[FordNewbie]

Great article. Thanks for posting. My question is, with a DPF delete, does the fuel dilution problem go away? Well, nearly go away? Sounds like another argument for DPF delete!

[sheepman]

Yes! With the DPF delete the fuel in oil goes away. I went from 2% fuel in oil to a trace amount. I would also like to add that a bad injector or bad HPFP can also add fuel to the oil

[350r powervalve]

sheepman did your mileage go up with the tuning and dpf delete

[sheepman]

Yes mileage went up! From a with DPF average of 16 to a No D P F average of 20. I can get it to do 23 mpg sometimes and have even seen 25 mpg on the dash. My mpg reading is .3 of a mpg off from my hand calculated mpg.