2017 ctd oil change

[Learjet]

"API CJ-4 engine oil category is required."

Read the WORDS! Does NOT say oil has to have the LABEL. AMZ/OIL meets or exceeds the API "MINIMUM" requirements.

6V92TA you still have NOT shown anything!

Yep, I read "Required" just fine ...LOL...it doesn't say meets or exceeds or "Minimum" with reference to API

 

[6V92TA]

quote from Cummins Quickserve regarding Fluids for Cummins Products. : The API oil category, or any international oil certification, is not sufficient by itself to select the appropriate engine oil for a Cummins® engine. Oils should be selected that meet the appropriate Cummins® Engineering Standard (CES). Table 1 below does provide a comparison between CES and other oil regulatory classifications for reference only.

Note : The CES number should not be considered to be sequential or supersede previous CES numbers unless specifically stated. Higher CES numbers do not necessarily indicate the oil is better than lower CES numbers.

The API requires a set of lab and engine tests that each commercial oil candidate must pass in order to meet the requirements for technology advances. API oil categories define the tests and properties required for a specific oil technology. Examples are below.
•CI-4 category oils were released in 2002 and updated in 2004, coinciding with exhaust gas recirculation technology, to improve soot control and shear stability.
•CJ-4 category oils were released in 2007, coinciding with emissions regulations and ultra low sulfur diesel fuel, to improve compatibility with aftertreatment, wear control, piston deposits, high temperature stability, and soot handling.
•CK-4 oils were released in December 2016 with all the typical viscosity grades of CJ-4 oils. As higher engine temperatures and lower emissions are a continuing trend, improved oils were required. CK-4 has improved oxidation resistance, shear stability, and aeration control. API category CK-4 is backward compatible with API category CJ-4 oil technology.
◦FA-4 oils were released in December 2016, primarily as a 10W-30 viscosity grade. FA-4 oils carry the same improved oxidation resistance, shear stability, and aeration control of CK-4 oils. FA-4 oils also reduce greenhouse gas emissions (increased fuel economy, dependent on duty cycle) by lowering high temperature/high shear (HTHS) viscosity. This lower HTHS results in directionally thinner oil films lubricating metal-metal interfaces. API category FA-4 oils are not backward compatible and should only be used when directed by the Lubricating Oil Recommendations and Specifications procedure in Section V of corresponding owners/operation and maintenance manual to use CES 20087 engine oils.

 

[6V92TA]

another one straight from the Cummins Manual QUOTE: Oil degradation occurs in all engines at varying rates, regardless of design. Oil has limitations on the amount of degradation it can withstand and still function as designed. Cummins Inc. bases its oil drain specifications on duty cycle and rate of oil degradation.

Factors that influence the rate of degradation include:
•Duty Cycle
•Fuel Type
◦Fuel Sulfur - Higher fuel sulfur increases the likelihood of premature oil degradation and shortened oil drains can be required. For example, using fuel with sulfur levels greater than 500 ppm can require a shortened oil drain interval.
◦Biodiesel - Higher biodiesel fuel can increase the likelihood of oil corrosion for engines using certain aftertreatment systems.
•Environmental Conditions

Acceptable methods for determining lubricating oil change intervals can be found in the Owners/Operation and Maintenance Manual.

Acceptable methods can include:
•Fixed Method (Mileage/Hours)
•Duty Cycle Method (Operating Conditions) - As fuel consumption rate increases, the rate of oil degradation increases.

Note : Use of synthetic oils does not affect the published oil drain interval unless specifically stated as such in the engine's owners manual or operation and maintenance manual.

Note : Engine oil filters must be changed when the engine oil is changed

 

[Cummins12V98]

What difference does it make, its been established I don't think this Amsoil is worth anything, or synthetics in general, with the cost to benefit.. Its very apparent you think this Amsoil is the only way to go.

Some are going to run the expensive snake oil ,and some are not. To each his own.

Pretty darn funny I post my personal experiences and get a bunch of negative comments. I am NOT criticizing anyone else on their oil use. I just show PROOF of what I use is doing a good job.