Cummins ISL Oil recommendation
Getting ready for my first service, and I see the shop offers standard oil, semi synthetic, or full synthetic. Terrific :) Any idea what would be the best oil for the ISL that operates as a vacati...
Forum Discussion
I shot an e-mail to Tom Johnson (JG Lubricant Services) referencing this thread. This is what he did/does for a living.
Here is his response: The latest oil specification for Diesel Engines, as defined by API (the American Petroleum Institute), is CK-4. The “C” means compression ignition, the “K” is the latest revision, and the “4” means 4-stroke. Here’s a link to the definition: http://www.api.org/products-and-services/engine-oil/eolcs-categories-and-documents/oil-categories#tab_diesel-c-categories. I suggest that forum members on this thread read the definitions and use the correct API Category oil shown in their Owner’s Manual.
And, concerning use of synthetics: With regard to posts, in this thread, that refer to the use of synthetics, I suggest that you pass on a link to one of my blog pages on synthetics. The word “synthetic” means different things to different people and I cover some of that in my blog. Here’s the link: http://www.jglubricantservices.com/blog/should-i-purchase-or-use-synthetic-oils-my-buddy-says-theyre-great/
Here is his response: The latest oil specification for Diesel Engines, as defined by API (the American Petroleum Institute), is CK-4. The “C” means compression ignition, the “K” is the latest revision, and the “4” means 4-stroke. Here’s a link to the definition: http://www.api.org/products-and-services/engine-oil/eolcs-categories-and-documents/oil-categories#tab_diesel-c-categories. I suggest that forum members on this thread read the definitions and use the correct API Category oil shown in their Owner’s Manual.
And, concerning use of synthetics: With regard to posts, in this thread, that refer to the use of synthetics, I suggest that you pass on a link to one of my blog pages on synthetics. The word “synthetic” means different things to different people and I cover some of that in my blog. Here’s the link: http://www.jglubricantservices.com/blog/should-i-purchase-or-use-synthetic-oils-my-buddy-says-theyre-great/
