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International Lubricant Evaluation
ACEA* Lubricant Evaluation

Evaporative Loss Evaluation (CEC L-40-A-93)

 

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  image of the evaporative loss laboratory evaluation method, which determines the evaporative loss of lubricating oils using the NOACK evaporative tester
 

Southwest Research Institute offers the evaporative loss laboratory evaluation method, which determines the evaporative loss of lubricating oils using the NOACK evaporative tester.

Evaporative loss laboratory evaluation method CEC L-40-A-93 determines the evaporative loss of lubricating oils using the NOACK evaporative tester. Offered by Southwest Research Institute (SwRI), this method relates to one set of operating conditions but may be readily adapted to other conditions if required.



ACEA 2008 Specifications

The evaporative loss laboratory evaluation is part of ACEA Specifications:

 

Gasoline and
Diesel Engines
Gasoline and Diesel Engines
with Aftertreatment Devices
Heavy-Duty Diesel Engines
A1/B1-08
A3/B3-08
A3/B4-08
A5/B5-08
C1-08
C2-08
C3-08
C4-08
E4-08
E6-08
E7-08
E9-08


CEC L-40-A-93 Evaluation Parameters

A measured quantity of an oil sample is placed in an evaporation crucible, which is then heated to 250°C with a constant flow of air drawn through it for 60 minutes. The loss of mass of the oil is determined. The reproducibility of the method is dependent on the mandatory use of a standard apparatus and procedure. The use of automated equipment is permissible as long as the requirements established by the CEC Working Group, under whose jurisdiction this procedure falls, are satisfied. The evaporative loss is defined as that mass of oil lost when a sample is heated in a test crucible through which a constant flow of air is drawn.


Pass/Fail Criteria

Gasoline and Diesel Engines
Property Limits (%)
A1/B1-08 A3/B3-08 A3/B4-08 A5/B5-08
Max. Weight Loss After
1 Hour at 250°C
≤15 ≤13 ≤13 ≤13

 

Gasoline and Diesel Engines with Aftertreatment Devices
Property Limits (%)
C1-08 C2-08 C3-08 C4-08
Max. Weight Loss After
1 Hour at 250°C
≤13 ≤13 ≤13 ≤11

 

Heavy-Duty Diesel Engines
Property Limits (%)
E4-08 E6-08 E7-08 E9-08
Max. Weight Loss After
1 Hour at 250°C
≤13 ≤13 ≤13 ≤13

 

 

*Association des Constructeurs Européens d'Automobiles/European Automobile Manufacturers Association.

 

For more information about our evaporative loss evaluation capabilities, or how you can contract with SwRI, please contact Becky Grinfield at bgrinfield@swri.org or (210) 522-3652.

 

evaploss.swri.org

 

Contact Information

Becky Grinfield

Evaporative Loss Evaluation

(210) 522-3652

bgrinfield@swri.org

evaploss.swri.org

Related Terminology

CEC L-40-A-93

evaporative loss evaluation

ACEA lubricant test

ACEA 2008 specifications

lubricant analysis

evaporative loss of lubricating oils

NOACK evaporative tester

standardized lubricant testing

 

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

June 16, 2011