Diesel Oil.....
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
Forum Discussion
I run Rotella T6 year round because I need it in the winter where I live. If you're in a warm climate the standard stuff should work fine and it would save a little bit of money. T6 is pretty cheap on Amazon, though, and I think there's a rebate right now.
