Shell Rotella T6 Full Synthetic 5W-40 Motor Oil, 1 Gallon (3 Pack)

from jan

Made my Cummins run much smoother, don't know what the previous owner had in it but it wasn't t6. Will be buying more for all future oil changes

from Ryan

This oil can't be beat for both value and how it handles the old school and new school diesels. Has all the right ingredients to handle my old 12v cummins with ease. Being a 5-40, much better in the winter months compared to the older school 15-40. I get zero burn off and this stuff just wor...

from JIM

Been around diesel equipment for forty years and have tried other oils but have always gone back to shell Rotella. Check truckers websites, read articles about diesel oils. I would not but anything in my diesel engine except Rotella now for the best grade T6 is what you want .

from SCV

The best price in the market

from Eli

I had previously done an oil change with an ACDelco filter and Mobil-1 5W-30 and noticed my oil pressure slowly getting lower and lower over a period of a few weeks. Oil pressure went from around 28psi at idle to less than 19psi and wouldn't go over 35psi when driving, I diagnosed it as a defecti...