[split] Fuel in Oil Question.

[Rawze]

(06-01-2018 )DUKE58 Wrote:  Rawze I have several questions about how diesel fuel gets in the oil. It is a 2006, CM870 it has a new head, with 200,000 miles on it. All six injectors were replaced in September and they replaced the injector cups as the same time, because coolant was getting into the number 4 cylinder. Seems like the oil is very thin, it has been to two shops recently and neither can find anything wrong. Did an oil sample and after 9,000 miles they said oil was 10 weight instead of 15 ( oil sample). Oil was sent to a lab in Indianapolis. The oil sample said it was 15/40 and that was sent to a lab in Houston, TX (Fleetguard). Can you give me a list of things to check. Do you have any idea what could be causing this problem?

Florescent die in the fuel will usually reveal it. I would bet a cracked head or a bad gear pump.

Sounds like the typical story heard from a victim of bad delete programming to me.