Pickup 2WD L4-2350cc Engine Oil: Technical Service Bulletin
Engine Oil: Technical Service Bulletins
Engine - Oil Recommendations/Obsolete Oils
No: TSB-05-12-001
DATE: January, 2005
MODEL: All Models
SUBJECT:
OBSOLETE ENGINE OILS
PURPOSE
Mitsubishi recommends using only engine oils that meet or exceed the ILSAC GF-3 certification by the American Petroleum Institute (API). Oils
displaying this mark meet the current engine protection standard and fuel economy requirements of the International Lubricant Standardization and
Approval Committee (ILSAC), which is a joint effort of U.S. and Japanese automobile manufacturers. If this mark is not on the oil, be sure that the API
service symbol on the oil meets the appropriate service classification, as explained below.
The API rates the performance level of engine oils. After analyzing an oil in laboratory engines, the API determines the oil's overall ability to lubricate,
its resistance to wear, oxidation, corrosion, and deposit formation.
API's Service Symbol on the oil container identifies the quality of the oil. Oils for gasoline engines have API service classifications that begin with "S"
(for service), followed by a letter to indicate the performance level of the oil.
Only three API service classifications of engine oil are acceptable: SM, SL or SJ.
API's recommendations:
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The latest engine oil service classification (as of November 30, 2004) is SM, for all automotive engines currently in use. SM oils are designed to
provide improved oxidation resistance, deposit and wear protection, and better low-temperature performance over the life of the oil. Oils with SM
classification are most highly recommended for all model years, to prevent sludging.
^
SL (or SL/CF) oils are recommended for 2004 and older automotive engines.
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SJ oils are recommended for 2001 and older automotive engines.
CAUTION
Engine oils with service classification of SH, SG, SF, SE, SD, SC, SB, or SA are obsolete oils that should not be used. These oils may cause
sludging, unsatisfactory engine performance, and may damage engine components.
Authorized Mitsubishi dealers must use the proper oil classification during servicing. Recommend customers to always be sure that their engine oil has a
service classification of SM, SL or SJ, depending on the vehicle's model year. If a non-authorized service facility is used, advise the customer to confirm
the engine oil classification with the service facility.
