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

I use this oil in a 2007 F-350 SRW 6.0 bulletproofed powerstroke and also a 2020 Ford F-450 6.7. It meets the Ford spec and its one of the best oils in a Ford diesel. I have analysis and used delvac, rotella, delo and Amsoil. Best mpg, best wear protection. In 8k miles in a 6.0, total of 9ppm for iron and 3 for copper.

Its oil, and its contained, what else is there to say.

This stuff is the best on the market for a 6.0 Diesel. I’m crazy I have sat for hours reading forums about the most asked about ,debated and discussed topic……best oil for my 6.0 diesel. I’ve literally tried Shell non synthetic and full synthetic Ford OEM oil and a few others. This with with Archoil AR91000 along with some form of ZDDP additive is hands down the best lubricant package you could ever put in this F-250 6.0 diesel period. STOP SEARCHING AND WASTING YOUR TIME IVE DONE THAT FOR YOU ALREADY!! Just pull the trigger!! PS Use OEM oil filter ONLY and change fuel filters every other oil change!!!

Read a lot of great things about this oil for use in my 6.0 PSD, just towed my travel trailer to Charleston SC and ran very well,oil temps alw a ys good even though we were in 95 ambient temps running 60-65 mph.

excellent

Great fuel economy, incredible oil!

After 2 hours run time its still clean.

Only Received 11 qts was in a bag inside a box , no case

Best oil on the market! Definitely quiets the engine valve train down and runs smoother. I’ll for sure purchase again!!

Good