Originally Posted by Freebore

I just used Blackston labs and with ~5000 miles on the 15W-40 Rotella, there was a 4.5% fuel dilution. Comments from Blackstone is cautionary as 2% is considered the max, however it appears the emissions diesels are having some problems like this. I believe I have heard that 5% is max but I can't count on the EVIC to tell me to change oil, I just chose to do so at 5000 rather than wait.

Flashpoint was 370, so that was low as well.