2006 Cummins 5.9 - 150k miles. I know nothing about this 5.9 that I just bought, except it really runs good. I've always used Delo 400 in diesel engines, what do you prefer and why? Thanks
For the engines that DON'T require the newer "LE" low emissions formula AMZ/OIL still makes their 15-40 Diesel Marine oil.
I would run that 10k in my 98 12V with Blackstone report saying to try 13k next time. I changed every 10k just because it was easy to remember and i bought 55 gallon drum at a time.