What does the J in JTD mean ?

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What does the J in JTD mean ?

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the powertrain website.
Its just that as vauxhall use cdti
Alfa just use jtdm as their badging for the new mjet engines as to look differentiate themselves from fiat.
Ya know
Fiat = multijet
Alfa = used jtd as the old engines and jtdm as the new multijet engines
Vauxhall = cdti
Saab = tid and ttid
Etc,just makes more sense that way
 
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The original common-rail diesel technology, developed first by Fiat and known as UniJet, used two injections of fuel into the cylinder. This radically improved the noise and vibration created by the traditional diesel engine. The next development that came created more control over the injectors, both by the computer and the physical behaviour of the injectors themselves. Named for its ability to have up to seven injections into the cylinder each time, the MultiJet was born.;):cool:

so the mjet and jtdm engines are all multijet

the ones with just jtd on the back whether it be 8, 16 or 20v, single or twin cam are uni(2)JTD engines;)
 
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maddogmorg

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surely the uni was only added after the introduction of multi jets so as to ensure the difference at least, that's what common sense would suggest. though i suppose this is fiat we are on about lol.
 

jug

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:bang:JTD stands for Jet Thrust Deisel!!!!!!!!:slayer:

thank you very much! uh hu!


jet thrust is only used to describe the alfa JTS (Jet Thrust Stoichiometric). its a completely different system to JTD.
 
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jet thrust is only used to describe the alfa JTS (Jet Thrust Stoichiometric). its a completely different system to JTD.

thought as much but wasnt going to say anything, just go to fiats or alfas website and youll find out it is uniJET, so the J is JET

1st sereis uni

2nd Multi

fiat use the full multijet name

alfa use jtdm which would be jet turbo diesel multi, which makes sence? no?
 
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I always thought it was 'Joint' as it was a join collaboration with GM and the M was for ' Multijet' as it was a multijet version of the original.
 

jug

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I always thought it was 'Joint' as it was a join collaboration with GM
fiat developed JTD without GM, and before the GM collaboration. if it meant joint i would expect both fiat and GM to use the same name.
 

antsuno2

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Ha ha jtd stands for smokebomb! if i get behind anything with a jtd. gtd, td, wahtever with a "d" at the end, stay back at the lights!,or get lungs full of black crap, then get around them quick as, easy enough! he he Ant!
 
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Ha ha jtd stands for smokebomb! if i get behind anything with a jtd. gtd, td, wahtever with a "d" at the end, stay back at the lights!,or get lungs full of black crap, then get around them quick as, easy enough! he he Ant!

depends what car you got whether its easy or not:p:)

and the black crap is alot less toxic than the clear crap out of petrols :)
 
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JFL

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Ha ha jtd stands for smokebomb! if i get behind anything with a jtd. gtd, td, wahtever with a "d" at the end, stay back at the lights!,or get lungs full of black crap, then get around them quick as, easy enough! he he Ant!

what car does one drive? :D

yeah the JTD does smoke, but do you notice the smoke coming out of your 'CLEAN' petrols exhaust? ermmm nope, basically call it invisible but deadly smoke :rolleyes::devil:
 
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what car does one drive? :D

yeah the JTD does smoke, but do you notice the smoke coming out of your 'CLEAN' petrols exhaust? ermmm nope, basically call it invisible but deadly smoke :rolleyes::devil:


well put it this way, stick your head under the exhaust of a diesel and it wont kill you, make you black and very sick but wont kill, were as petrol fumes well slowly put you into a permanent sleep;)
 
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