Join Date: Dec 2002
Location: Central Alabama, USA
Feedback Score: 0 reviews
I also come here to educate myself and share information not argue. I admit it when I am wrong and see no need to argue when I am correct. I do like to be quoted correctly for accuracy.
The original poster was seeking advice and direction on this contentious branding driven subject, the right oil for his investment in a sea of what can seem like incomprehensible personal opinions. I sought only to explain how the industry works and the system and accepted Industry rating standard so that he could have confidence that by using that system he would get the right oil and have confidence in that selection. I still believe, along with the entire industry, that that the API system is correct.
The API system is used as a standard by quality product manufacturers, INCLUDING the Mobile product Delvac you indicated " My Delvac" above you use. Easy to find in Mobil Delvac specs advertised everywhere and right on every container, API not other organizations. That is why I keep going back to API.
The current CK-4 API rating (Including Delvac) is the latest in a series of oil specifications. Starting with "C". It started with C4 and has progressed through CI-4 CJ-4 to CK-4. The current CK-4 Is applicable to all preceding versions, pretty simple system. They, API and oil producers use a similar alphabetical system for other applications like automobile and gasoline engines for instance the "S" series.
I apologize to the original poster if I contributed to any confusion on what oil to use that will make him feel comfortable with his choice.
2002 F250 7.3L PSD, bought new now at 226K miles, 4R100 Auto, Crew Cab, Short Bed, ITP Regulated Fuel Return system, ITP head to head SS oil cross over, Hutch in tank mod
Harpoon de tank vent, DIESELSITE Dahl 100 Pre-Pump Fuel Filter, DIESELSITE Return Fuel Line Cooler, DIESELSITE Engine Coolant Filter, DIESELSITE Auxilliary Transmission Cooler, DIESELSITE Gage Package, Pyro, Trans & Boost, Extreme Diesel AD injectors, Ford AIS Air Filter System, BTM straight through muffler, Moog Ball Joints, Rancho Shocks, Rotella ELC Coolant ,Stock Engine Program
Modified for I-Pod Connection
We b playing Scotland The Brave to Jimmy Hendrix
Last edited by Oneof6; 10-04-2018 at 12:49 PM.