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
^Does the regular dino Rotella still smell? I don't typically run that because it used to smell like you had an oil leak on the exhaust. Have t tried it in a long time, but run T6 in the wet clutch bikes and SRT