Nissan Motors

Nissan Motors

, usually shortened to Nissan , is a multinational automaker headquartered in Japan. It was a core member of the Nissan Group, but has become more independent after its restructuring under Carlos Ghosn ....

 uses a straightforward method of naming their automobile

Automobile

An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

 engine

Engine

An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines burn a fuel to create heat which is then used to create motion...

s. The first few letters identify the engine family. The next digits are the displacement in deciliters. The following letters identify features added and are order specific based on the type of feature.



The features/letters follow a specific order and not all features are necessarily listed all of the time.
The basic, common features follow this general order:



[Engine family character(s)] [two-digit engine displacement in deciliters] [1] [2] [3] [4] [5]



1 = Camshaft

2 = Fuel delivery

3 = Power adder

4 = 2nd power adder

5 = Special



A good example is the Nissan RB26DETT engine where the feature letters describe an engine with dual overhead camshafts, electronic port fuel injection and two turbo chargers.



The next example is the Nissan SR20DE engine where the feature letters describe an engine with dual overhead camshafts and electronic port fuel injection but leaves off any power adder descriptors because it is a naturally aspirated engine.