SOUTHWEST RESEARCH INSTITUTE

International Lubricant Evaluation • ***JASO* Engine Evaluation***
Peugeot DV4TD Medium-Temperature Dispersivity Evaluation (CEC L-93-04)

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Southwest Research Institute (SwRI) offers the Peugeot DV4TD medium-temperature dispersivity evaluation (CEC L-93-04), which evaluates:

The effect of combustion soot on engine oil viscosity increase
Piston cleanliness

ACEA 2004 Specifications

The Peugeot DV4TD medium temperature dispersivity procedure is part of ACEA 2004 Specifications:

Gasoline and Diesel Engines	Gasoline and Diesel Engines with Aftertreatment Devices
A1/B1-04 A3/B3-04 A3/B4-04 A5/B5-04	C1-04 C2-04 C3-04

Field Service Simulated

The Peugeot DV4TD medium temperature dispersivity procedure simulates high-speed highway service in a diesel-powered passenger car.

Peugeot DV4TD Medium Temperature Dispersivity Fixture

The fixture is an engine dynamometer test stand with a Peugeot DV4 TD/L4 four-cylinder, inline, common rail diesel engine installed.

CEC L-93-04 Parameters

The engine undergoes a 10-hour run-in and is then operated continuously for 120 hours. The 240-cycle procedure consists of the following two phases:

Test Phase	1	2
Duration, minutes	2	27
Ramp Between Phase, seconds	30	30
Engine Speed, rpm	1,100	4,000
Engine Power, kW	—	>40
Engine Oil Temperature, °C	—	120
Coolant Temperature, °C	—	100

Peugeot Parts Evaluated

Pistons and rings are rated for lacquer deposits and ring sticking.

Used Lubricant Analysis

Kinematic viscosity at 100 °C, soot content and iron content in the used oil are evaluated at 24-hour intervals during the evaluation. The final oil drain is used in conjunction with the intermediate samples to interpolate the absolute viscosity increase at 6% soot.

Pass/Fail Criteria

ACEA 2004 limits are being defined.

For more information about Peugeot DV4TD medium-temperature dispersivity evaluation (CEC L-93-04) capabilities at SwRI or how you can contract with SwRI, please contact Ryan Johnson at rjohnson@swri.org or (210) 522-2892.

*Japanese Automobile Standards Organization

Contact Information

Ryan Johnson

Peugeot DV4TD
Medium-Temperature
Dispersivity Evaluation (CEC L-93-04)

(210) 522-2892

rjohnson@swri.org

Related Terminology

Peugeot DV4TD

medium-temperature dispersivity

CEC L-93-04

increased engine oil viscosity

piston cleanliness

lacquer deposits

ring sticking

viscosity increase

piston deposits

ACEA 2004 specifications

Association des Constructeurs Européens d'Automobiles

European Automobile Manufacturers Association

Related Information

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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.

September 30, 2008

International Lubricant Evaluation • JASO* Engine Evaluation Peugeot DV4TD Medium-Temperature Dispersivity Evaluation (CEC L-93-04)