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This is my first oil change after deleting and tuning my old VW used shell T6 plus a couple litres of Euro oil for top ups and 1 litre of amsoil max duty diesel so 3 litres top up oil OEM filter EGR + PCV delete + Malone Stage 1 tune Here is a couple old samples from before the car was...

2011 Ram 5.7 Hemi, towing 6,000lbs most of the time, I sampled half way through the interval, but the filter was never changed trucks currently at 297,443km went 30,000km on this oil change its the longest we have gone so far Truck was running Amsoil 5w20 Signature Series, and A EaO 11 fiter...

2015 Ford 6.7 Powerstroke 5w40 Amsoil fully deleted and Amsoil dual remote bypass Well 5 hrs after I took this oil sample and changed the oil the crankshaft snapped ruining the block 38,000km with a full flow filter change half way through Oil sample looks great I am guessing there was a weak...

Seems like this truck is impossible to get a decent sample from. It tows heavy and has a 4" lift kit and larger tires so I don't know if there is anything I can do, the little 4.7 might just be over worked. Could this engine just be full of sludge?

Copper worries me a bit, but otherwise this engine appears to be wearing very well. I did a oil sample shortly after it was changed because the Kenworth dealer overfilled the oil and the injectors went so I was concerned the extra gallon of oil was fuel.

Under-powered Oil field truck that is driven hard, tows a trailer, and has a lift kit Unknown oil was in the truck but it was very gross, maybe I should have preformed a flush before I ran the Amsoil but I thought I would be safe running it for half of recommended OCI The driver topped it up...

They went a little over the recommended OEM motorcraft filter and Delo 5W40 oil

I forget what oil I used on this change it might have been rotella T6 0w40 instead of the 5w40 This oil had 12,000km's/ 256 hrs Truck is fully deleted (DPF, EGR, EGR COOLER, CCV) Al is 13 Cr is 1 Cu is 2 Iron is 45 Pb is 1 Si is 11 Mo is 7 K is 9 Na is 4 B is 7 Calcium is 1990 Mag is 108 Vis @...

What does everyone think EDIT: removed personal info