This document summarizes the results of a field testing program that evaluated the performance of different diesel engine oils at extended oil drain intervals. In a 59-truck trial conducted over 2-3 years, the data showed that using a premium mineral diesel oil allowed safe extension of drain intervals compared to a conventional mineral oil. A premium synthetic oil maintained performance at four times the normal drain interval without negatively impacting engine durability. The synthetic oil also provided approximately a 3% reduction in fuel consumption compared to conventional mineral oil.

1. Extended Oil Drain Performance Capabilities of Diesel Engine Oils 10/6/11 3:35 PM
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Extended Oil Drain Performance Capabilities of Diesel Engine Oils
Paper Number: 982718 Date Published: 1998-10-19 To see your exact member discounted price, log in now.
DOI: 10.4271/982718 Delivery List Member Add to
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This paper describes the results of a comprehensive field-testing program conducted in modern
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low-emission heavy-duty diesel engines to evaluate the extended oil drain capabilities of
several diesel engine oils of varying performance levels. The data generated in the 59-truck
trial, which was conducted over a two to three year period, provide support for extension of Related Content
engine oil drain intervals when a premium mineral diesel oil is used rather than a fighting-grade
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mineral diesel product. The field trial results also document the performance of a premium fully
synthetic engine oil at four times conventional oil drain intervals. Engine inspections conducted Continuous Online Oil Consumption Measurement
with the SO2 Tracer Method
after 500,000 test miles confirm that the extension of oil drain intervals with premium diesel
engine oils has no negative impact on engine durability. In addition to the extended oil drain Effect of Start of Injection on the Particulate Emitted
by Methanol Fuelled HCCI Engine
interval performance, the fully-synthetic SAE 5W-40 oils evaluated were found to provide
The robustness analysis of the virtual particular
approximately a 3% reduction in fuel consumption relative to conventional SAE 15W-40 mineral matter sensor
oil based products in the applications tested.
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Product Status: In Stock Diesel Exhaust Aftertreatment 2000-2007
See papers presented at International Fall Fuels and Lubricants Meeting and Exposition, Standards
October 1998, San Francisco, CA, USA, Session: Diesel Engine Lubricants Engine Oil Viscosity Classification
Engine Power Test Code - Spark Ignition and
Compression Ignition - As Installed Net Power
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