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Section 4 Cummins Diesel Engine Oil Performance Classification

Jan. 07, 2018

Cummins Engineering Standards (CES)

Cummins Inc. has established a number of Cummins Engineering Standards (CES) which describe the performance levels that must be used in various engines. The CES documents are the primary definition of lubricant performance for Cummins Engines. In addition, Cummins Inc. works through the Engine Manufacturer s Association (EMA) and with the many technical and marketing organizations responsible for lubricant quality around the world. Heavy Duty Engine Oil Recommended Guidelines in Global DHD-1 provide international users guidance in choosing oils in all parts of the world.


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Supplemental Friction Modifiers and Other Additives

Addition of supplemental additives can alter the balance that the original formulator established in the fluid.
CCEC neither approves nor disapproves of any additives not manufactured or sold by CCEC or its subsidiaries, Engine failure or performance problems, which result from the use of such additives, are not warrantable by CCEC.


API Oil classification
API oil classification includes two major series: initial letter "C" denotes that oil performance meet diesel engine requirement; initial letter "S" denotes that oil performance meet gasoline engine requirement. The formulation of oil performance for initial letter "C" please see Table 3.


Table3. Engine Oil Classification:


APIclassification

Application

Recommended Reason

Efficient Time

CA

Light duty naturally aspirated diesel engines which use low Phosphor fuel

To solve contaminants caused by high temperature deposit

1935

CB

Light or MidRange 

duty engines which use high Phosphor fuel

To solve the corrosive and deposit caused by high sulphur content fuel

1949

CC

MidRange or Heavy duty naturally aspirated or turbocharged diesel engines

Predigest the oil breed used on those gasoline and diesel

1955

CD

Conditions are rigorous

High speed and high turbocharged diesel engines.

To solve the corrosive and deposit on high turbocharged diesel

1964

CE

High speed and Heavy Duty turbocharged diesel engines

Similar to CD grade, as an intergrade oil, add Cummins NTC400 test

1987

CF

Heavy Duty, turbocharged 4 stroke diesel engines. major to indirectly inject diesel

Not applicable to CCEC engines

To solve the corrosive and high/low temperature deposit

1990

CF-4

Heavy Duty, turbocharged 4 stroke diesel engines, special for low emission new   engines manufactured after 1991.

Applcabl  to all mechanical injector engines of CCEC

To solve the corrosive and high/low temperature deposit

1991

CG-4

Heavy Duty, turbocharged 4 stroke diesel engines, application for low emission new engines manufactured after 1994.(sulphur content <0.05 percent)

Not applicable to CCEC engines

To solve high/low temperature deposit

1994

CH-4

Heavy Duty, turbocharged 4 stroke diesel engines, application for low emission new engines manufactured after 1998

Applicable to all engines of CCEC

To solve high/low temperature deposit, satisfied the emission standard of 1998 in USA

1998

CI-4

Heavy Duty and MidRange Engines with EGR

To improve corrosion and oil consumption, prevent carbon deposit on piston rings

2002

CJ-4

Heavy Duty and MidRange Engines with Exhaust Aftertreatment and 15 ppm Sulfur   Diesel Fuel

Not applicable to CCEC engines

To improve reducing friction, high temperature oxidation resistance, low   temperature transportation capability

2006

 

Chongqing Cummins Oil Performance Recommendation

 

As foregoing formulation, Chongqing Cummins Engine Company prescribes using following API oils:

● CF-4

● CH-4

● CI-4

CCEC F grade oil satisfies API CD and CF-4.

CCEC H grade oil satisfies API CF-4/CH-4.

CCEC I grade oil satisfies API CF-4/CH-4/CI-4

For actual usage, taking reference to Section 1, note 3 CCEC oil application and recommended drain interval.


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