Schaeffer Manufacturing Co. 0700CK4-012 SynShield Durability Advantage 15W-40 Diesel Engine Oil, 12-Quart Bottle (Pack of 12)

Great oil, from a trusted, and well respected manufacturer. Buy this CK-4 rated oil with confidence.

Reproductor Muy Bueno pero noso responsables con la devolu cion de dinero

Good

Very expensive,I am dissatisfied ,my motor is now louder than it was before, especially when cold.I just dont see me using and pay in extra in the future for this product

Great product as always from Schaeffers

As a retired Ford Technician I am very pleasantly surprised by this oil. I have ran Motorcraft and Valvoline for decades. But this oil is amazing actually picked up 2mpg in my 6.0 powerstroke with this oil. Now that I am planning to open my own shop this will be my go to Diesel oil and will run in my personal truck.

Best oil for Ford 6.7 Powerstroke, hands down.

Im running this in my 17 F250 6.7, all previous oil changes were T6. Schaeffers is supposed to be far more premium but honestly I think the Ford 6.7 runs better on Rotella. It seems to run louder on Schaeffers and this oil meets Fords specs. I bought Schaeffers because it was on sale here on Amazon for $6 a gallon less then T6, and because I was intrigued to try it. I also noticed that I get a hair better fuel economy with Rotella but its so small maybe its not worth mentioning. Im going to give Schaeffers a little more time since I bought enough for 3 oil changes, but Im feeling in my gut T6 will probably be the winner after Ive gone through all the Schaeffers.

I run this in my 2015 F250 6.7. They actually sent the correct oil this time. Change oil and filter every 5k miles.

Great fuel economy, incredible oil!