chris_s wrote:Maybe a silly question, but I'm interested to see if I'm being ripped off.
I just had my MN 15,000km service.
Before driving off after a service, I always check the oil (to make sure the level is okay, etc).
It was black.
I walked back & asked the service manager if this is normal and he said, "Of course, it's a diesel."
Is this normal with Triton diesels??
When I had my 3L patrol, the oil was always a clear colour and only started turning black at around 5000 Km after its oil & filter change.
Thanks in advance.
Chris I have a 2013 MN Triton 2.54D56THP that had its first service at 10,000km and the oil was as black as the ace of spades. After draining the sump and oil cooler drain, replacing the oil filter and adding new engine oil, the oil was still visibly dirty. So i would not be surprised if it looked dirty. As it has been mentioned the internal galleries etc have dirty oil and so does the valve train, block walls etc ( just have a look inside through the oil filler cap). I have gone to the trouble of flushing the engine several times until oil is clean and repeating the flushing at 200km intervals to clean up the valve train and internals. So after i have done the last oil flush the oil is golden as the oil from bottle, after 100km the oil is still golden, but after 500km the oil is brown, tilting the dipstick in the sunlight you can see the golden tinge but is heavily loaded with brown oil after just 500km. Since I have the EGR blocked off completely, I'm wondering if i have extra diesel being injected or do i have a distorted block and rings aren't sealing properly, upside down compression ring, leaking injector seal and compression is leaking past injector into oil. I will keep changing my oil every 500km for a while to clean internals and then my next step will be to get some oil samples done to tell me how much soot and how much diesel so i can get to the bottom of this. Costly but it shits me that the 3.2 4M41 with just the EGR blank stays golden till about 3000km.