Annotation of standard text SAE J604 :
This SAE Recommended Practice is applicable to all types of reciprocating engines including two-stroke cycle and free piston engines, and was prepared to facilitate clear understanding and promote uniformity in nomenclature.
Modifying adjectives in some cases were omitted for simplicity. However, it is good practice to use adjectives when they add to clarity and understanding.
SUBJECT TAXONOMY: Fuels and Energy Sources, Terminology, Power and Propulsion, Engines, Diesel / Compression Ignition engines, Spark ignition engines, Vehicles and Performance
SUBFILE: Automotive
TYPE OF DOCUMENT: Ground Vehicle Standard
Stabilized: Aug 2011 