02-03-2019,
(02-03-2019 )Autobotstransport Wrote: [ -> ]Whats the best oil to but on the isx400 , should i put 1gal of lucas?
Most here use Rotella T4, https://amzn.to/2GWVbDd
I would not add Lucas to your motor, plenty of posts regarding that here. What many us do add is an 85-90W gear oil... https://amzn.to/2Lgsg29
If you still have the DPF/DOC/SCR system intact, I would not add anything to the oil, run straight oil, no additives. These DPF systems are pretty sensitive, and expensive to repair.