API SE Class: Diesel Engines from 1983
In this section: 12 articles
Engine oils for use in diesel engines starting with 1983 model-year engines (obsolete class).
Oils of this class were intended for use in some high-output turbocharged engines with significantly increased operating compression. Such oils were suitable for engines with both low and high crankshaft speeds.
API SE engine oils were recommended for low- and high-speed diesel engines built from 1983 onward that operated under increased load. Where the engine manufacturer recommended it, these oils could also be used in engines for which CD-class engine oils were recommended.