Diet engine

:? Bon soir....
je suis italien...I can't speak french, so i ask my question in english...
i would like to know why the D7F engine that was launched with clio I.3 is also called DiET engine. What"diet" means? what are the peculiarities of this engine?
thank you very much if you want to answer to my question, also in french, because i can read it very well...
merci a tous..

Hello
I think "Futures Renault" is not good category/section, try here :
https://www.planeterenault.com/forum/viewforum.php?f=3
with a title like that : "[Clio I.3] Diet Engine ?"
(I can not answer your question :? )