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Old 01-31-2013, 04:20 PM   #1
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Default Oil drain intervals series 60 engines

Beginning in October 2002, more stringent exhaust emission requirements were implemented
for on-highway engines. To meet these requirements, cooled exhaust gas recirculation (EGR)
technology was used in addition to the existing retarded fuel injection timing. The DDC PGOS
approved engine oils have been formulated to address these issues. It is anticipated that these new
oils provide the capability of maintaining the oil drain intervals

The used oil limits for extended oil drain are

Adjusted oil drain intervals will depend on the engine's rate of soot generation and the engine oil's
capability to protect the engine. In some cases, it will be necessary to shorten oil drain intervals
from the baseline oil drains, while in others it may be possible to operate at the maximum oil drain
intervals.

Soot accumulations in the engine oil exceeding the capability of the
oil formulation can result in increased wear and reduced engine durability. DDC recommends used
oil analysis to determine the proper oil drain interval for these engines and oils. The oil analysis
properties and limits should be considered when establishing oil drain intervals for these engines.
Used Oil Property Test Method Limit

Soot % TGA (E1131), FTIR* 4.5 max.

Kinematic Viscosity, 100 C D445 25 CSt max

Iron, ppm D5185 200

* Infrared Spectroscopy may be used, provided it is calibrated to be equivalent to TGA. DDC must approve
the equivalency


Used Oil Drain Limits for Series 50 and Series 60 On-Highway
Engines

The oil drain intervals are based on engine hours and fuel consumption.

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Old 01-31-2013, 04:26 PM   #2
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Maximum Allowable Oil Drain Intervals When Using a Fuel Not Meeting DDC Recommendations

NOTE:

These oil drain intervals are to be used for all engines and applications where the fuel
used does not meet the recommended properties listed in Table 5-1, “Diesel Fuel
Specifications.”

EXTENDING OIL DRAIN INTERVALS

Changing engine oil and filters at regular recommended intervals removes contaminants in the
oil and filter and replenishes expendable oil performance additives. The extension of oil change
intervals necessitates that an engine can tolerate increased levels of contaminants such as soot,
dirt, wear metals, fuel residues and water.

Extending oil filter change intervals requires that filters

have sufficient increased capacity to continue collecting these contaminants at a sufficient rate
to protect the engine. The engine oils must be formulated with additives capable of extended
performance for wear and oxidation, dispersency and detergency, and filterability.

While the extension of oil drain intervals can provide owners and operators of diesel-powered
equipment a cost savings in materials (oil and filters), maintenance-related downtime, and waste
disposal, there can be a significant reduction of engine life to overhaul.

Currently marketed engine oils and filters are not designed to operate at extended service intervals. These
products meet performance requirements of standardized industry tests that are intended to
predict actual engine operation under the conditions of standard service intervals.

ENGINES WITHOUT EGR

Oil drain intervals may be 22,500 miles with the use of oil meeting Global DHD-1. Increased
filter capacity may be required

ENGINES WITH EGR

The oil drain intervals for engines with EGR may be 22,500 miles if an oil is used from PGOS
approved products. The used oil limits listed in Table 4-2 must be maintained.

If oil and filter change intervals of 22,500 miles are used, the following criteria will help to
minimize the detriment to performance and engine life.

DDC recommends that oil and filter change intervals not be extended at anytime beyond the used oil analysis limits listed in Table 4-4,
“Single Sample Used Oil Analysis Warning Limits.”

The following criteria also apply:

1. A rigorous maintenance program which includes used oil sampling, close adherence to
maintenance schedules, and consistent make-up oil additions. DDC POWER TracŪ used
oil analysis kit with TBN, P/N 23520989, or equivalent is recommended in determining
the proper oil drain interval.

2. Duty cycle severity no greater than defined as 60% maximum load factor, based on fuel
consumption and a 40% maximum operating time at idling conditions.

3. The oil and filters should have field test demonstrated performance. Depending on the
engine and application, the field test should be conducted at drain intervals at least 30%
higher than the intended target for a duration of 500,000 miles or 5,000 hours.

4. The oil and filter suppliers should have a written policy regarding extended service
intervals beyond manufacturer recommendations. This policy should clearly state the
requirements to be met by the customer and warranty support for early engine wearout
resulting from the use of their product in extended service.

The decision to extend oil and filter change intervals beyond those recommended rests with the
customers, the oil and oil filter suppliers. Extending oil drain intervals will not void the DDC
product warranty. In the event of engine failure or premature wearout when running extended
oil and filter change intervals, a determination will be made as to the extent, if any, that DDC
workmanship and materials were responsible.

If DDC determines that the failure or early wearout is related to workmanship or materials, warranty coverage of the repairs will apply. If the engine
fails or wears out within the DDC engine warranty period and this is determined to be a result
of extending oil drain intervals, any claim for reimbursement of expenses under the terms of
the engine warranty will be denied.
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