SwRI: Caterpillar C13 procedure simulates heavy-duty diesel engines configured to meet 2007 on-highway emissions regulations.

The Caterpillar C13 lubricant procedure evaluates the performance of crankcase lubricants for piston deposits and oil consumption, and it is approved for API CJ-4 performance category.

 

The Caterpillar C13 procedure simulates heavy-duty diesel engines configured to meet 2007 on-highway emissions regulations.

 

Caterpillar C13  Equipment and Procedure

An inline, six-cylinder Caterpillar C13 engine with one-piece steel pistons, dual-stage turbocharging, and "ACERT" technology is used. This engine does not use cooled, recirculated exhaust gas (EGR) in the same manner as other competing engines of this class. This procedure uses PC-10 fuel.

 

This 500-hour procedure operates at 1,800 RPM and 1,200 grams/minute fuel flow, 40°C intake manifold temp, 88°C coolant out temp, 40°C fuel in temp, 98°C oil gallery temp, 280 kPa intake manifold pressure.

 

Procedure Results

At the end of the Caterpillar C13 lubricant procedure, the following parts are evaluated:

  • Liner (1Y-4107)

  • Piston (1Y-4106)

  • Top ring (1Y-4108)

  • 2nd ring (1Y-4109)

  • Oil ring (1Y-4110)

Piston rings and liner are evaluated according to the Coordinating Research Council (CRC) demerit procedure.

 

Lubricant analysis includes:

  • Viscosity

  • Total base number (TBN)

  • Total acid number (TAN)

  • Wear metals

  • Thermogravimetry analysis (TGA) soot

  • Fuel dilution

Pass/Fail Criteria

Parameter

Max

Merit Wt

Anchor

Min

Delta O/C

31

300

25

    10

ATLC

35

300

30

    15

ATGC

53

300

46

    30

R2TCA

33

100

22

      5

Merits

1,000

 

For more information about the Caterpillar C13 lubricant procedure capabilities at Southwest Research Institute (SwRI) or how you can contract with SwRI, please contact Jim McCord at jmccord@swri.org or (210) 522-3439.

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