Better diesel engine, ISUZU or HYUNDAI?

[PATSYS50]

Guys,

I always thought the leader in diesel engines is ISUZU but there are now 2 people I know that say HYUNDAI has taken over from ISUZU in diesel engine technology. They both said HYUNDAI CRDI is the best out there.

Is this true? I thought the ISUZU 4JJ1 is the best out there today?

I guess the criteria would be

Fuel economy (considering the same displacement)
Low maintenance
Durability
Power

Any input will be appreciated.

Thanks

[Horsepower]

Hyundai.

Numbers don't lie.

Durability? Hyundai uses Bosch injectors (the best out there since it's German).
Power? Hyundai R 2.2L CRDI 220hp/461Nm (local version was detuned to 200hp).

Now compare these data to the 4JJ1 3.0L

[renzo_d10]

Hyundai.

They're more modern now and gives much more power than what Isuzu offers in their engines.

[tidus1203]

HYUNDAI!!!

Isuzu reminds me of smoky, stinky and noisy diesel engines...

[beta675]

Hyundai.

Numbers don't lie.

Durability? Hyundai uses Bosch injectors (the best out there since it's German).
Power? Hyundai R 2.2L CRDI 220hp/461Nm (local version was detuned to 200hp).

Now compare these data to the 4JJ1 3.0L

May i remind you sir that it's so easy to compare things in paper, but we're always missing the overall perspective in durability, injectors alone doesn't prove it all...The 4JJ1 engine wasn't built in horsepower alone but also for fuel economy...It was not only Hyundai and Isuzu that you can compare nowadays in diesel engine technology, and of course the much debated power...Checkout Nissan, Mitsubishi, Toyota etc., Maybe we'll see all the answers in the years to come which one stands out.....

[PATSYS50]

Hyundai.

Numbers don't lie.

Durability? Hyundai uses Bosch injectors (the best out there since it's German).
Power? Hyundai R 2.2L CRDI 220hp/461Nm (local version was detuned to 200hp).

Now compare these data to the 4JJ1 3.0L

Strange indeed that ISUZU's 3.0L only produces 148 HP

But what about Hyundai's fuel consumption? I heard Isuzu Alterra gets approx 13 km/liter city driving.

[PATSYS50]

May i remind you sir that it's so easy to compare things in paper, but we're always missing the overall perspective in durability, injectors alone doesn't prove it all...The 4JJ1 engine wasn't built in horsepower alone but also for fuel economy...It was not only Hyundai and Isuzu that you can compare nowadays in diesel engine technology, and of course the much debated power...Checkout Nissan, Mitsubishi, Toyota etc., Maybe we'll see all the answers in the years to come which one stands out.....

Hi Beta,

What can you say about it in terms of durability and fuel economy? Is Isuzu better then Hyundai?

[arbe]

fuel economy,nothing beats isuzu... hyundai and kia are much more advanced

[renzo_d10]

Fuel economy, ISUZU.

Durability is still yet unknown since CRDi technology has only been out for several years unlike the old-school diesels who've been out for more than a decade.

Speed and acceleration power goes to the CRDi equipped vehicles, for sure.

[blue_gambit]

Isuzu, hands down reliability. yung 4jj1 dito is not the full version of that engine. I thinks its called super common rail. Out put and torque comparabe to mitsu and toyota. (mounted on a Ladder-frame chassis)

Out right performance hyundai diesel, wins. (mounted on a car based SUV)

But you have to draw the line which is better for what use? Isuzu's are truck specialist Large displacement diesel engines, while hyundai makes small displacement diesel engines. And both use Bosch injectors.

[Starex_Gold]

Matibay naman talaga engines ng Isuzu. Trooper 4JX1 lang ang panira

Fuel economy, Isuzu. Pero yung Trooper ni s_quilicot nakaka 6-7 km/L lang daw. hehehe

Power? Di na kailangan itanong. Hyundai iniwan ko yung Montero Sport GLS SE sa SCTEX.

[CVT]

Hyundai for me, bro...

Pero ang mga fans ng Isuzu,- talagang Tifosi ang dating!...

9707:electricf:

[Starex_Gold]

CVT, sa bagay mukhang mas matibay ang Hyundai. Wala pang Hyundai CRDi ang pumapalya diba?

[PATSYS50]

Hmmn I am now getting confused.

Many of you guys make contrasts between CRDI engines vs ISUZU engines.

But isn't ISUZU Alterra's engine a CRDI?

[blue_gambit]

Yup CRDI din ang isuzu 4jj1, problem is the turbo they use locally. non- variable geometry yung turbo. Kaya di competitive when it comes to performance. At talagang panira yung 4jx1 sa rep ng Isuzu.

Hmmn I am now getting confused.

Many of you guys make contrasts between CRDI engines vs ISUZU engines.

But isn't ISUZU Alterra's engine a CRDI?

[scharnhorst]

Hmmn I am now getting confused.

Many of you guys make contrasts between CRDI engines vs ISUZU engines.

But isn't ISUZU Alterra's engine a CRDI?

Yes, the 4JJ1 found on alterra and the d-max are CRDI engines.

But Hyundai markets its diesel engines with the "CRDi" label, just like how toyota labels the D-4D, mitsu with the D-ID, and isuzu with i-Teq.

no biggie, it's just semantics.

regarding the topic... Isuzu's no longer the "authority on diesel engines".

yes, they have tried and tested designs, but in terms of sophistication? Napag iwanan na talaga sila.

[CVT]

CVT, sa bagay mukhang mas matibay ang Hyundai. Wala pang Hyundai CRDi ang pumapalya diba?

None that I heard of bro. Even with the dirty diesel which we are currently 'enjoying' here.....

9707:electricf:

[niky]

May i remind you sir that it's so easy to compare things in paper, but we're always missing the overall perspective in durability, injectors alone doesn't prove it all...The 4JJ1 engine wasn't built in horsepower alone but also for fuel economy...It was not only Hyundai and Isuzu that you can compare nowadays in diesel engine technology, and of course the much debated power...Checkout Nissan, Mitsubishi, Toyota etc., Maybe we'll see all the answers in the years to come which one stands out.....

For CRDI type engines, injector durability is everything.

Modern engines can last well over 300,000 kilometers, if need be. But modern high-pressure injectors often fail long before that.

While I put my faith in the durability and long-term use of Isuzu's old-school overhead valve 4JA1s and 4JB1s (have one close to 200,000 kms, and two others at around 170,000 kms plus), Isuzu's more modern engines use Denso technology for their common rail system. Even in Europe and Australia, Denso systems have a bad rep (guess who else uses Denso? D4D problems, anyone?), and the Bosch systems are considered king.

Old Isuzus and Nissan Patrols with the Denso high pressure systems have numerous problems (and these are not just limited to the 4JX1. There are rumors about the Alterra now). Some Toyota Denso owners are on their third fuel pump. Hyundai? They use Bosch. One member here is still on the original injectors. Even after being "Ondoy'd". At 300,000 kilometers. Now that is impressive. I've only ever heard of one or two injector failures stories for Hyundais, and they were old Starexes with over 150k kms.

Nowadays, it's no longer enough to cite the brand of the car... with boutique specialists like Bosch, Siemens and VM Motori (they make the Captiva diesel... pretty good diesel, that one) taking more and more responsibility for engine technology, you often have to ask what particular subcontractor/supplier built the engine and engine hardware.

[PATSYS50]

For CRDI type engines, injector durability is everything.

Modern engines can last well over 300,000 kilometers, if need be. But modern high-pressure injectors often fail long before that.

While I put my faith in the durability and long-term use of Isuzu's old-school overhead valve 4JA1s and 4JB1s (have one close to 200,000 kms, and two others at around 170,000 kms plus), Isuzu's more modern engines use Denso technology for their common rail system. Even in Europe and Australia, Denso systems have a bad rep (guess who else uses Denso? D4D problems, anyone?), and the Bosch systems are considered king.

Old Isuzus and Nissan Patrols with the Denso high pressure systems have numerous problems (and these are not just limited to the 4JX1. There are rumors about the Alterra now). Some Toyota Denso owners are on their third fuel pump. Hyundai? They use Bosch. One member here is still on the original injectors. Even after being "Ondoy'd". At 300,000 kilometers. Now that is impressive. I've only ever heard of one or two injector failures stories for Hyundais, and they were old Starexes with over 150k kms.

Nowadays, it's no longer enough to cite the brand of the car... with boutique specialists like Bosch, Siemens and VM Motori (they make the Captiva diesel... pretty good diesel, that one) taking more and more responsibility for engine technology, you often have to ask what particular subcontractor/supplier built the engine and engine hardware.

Thank you for the very informative post

[bloowolf]

This thread needs an update. Nag improve na ang Isuzu engines, dba? The FC of their pick up is really impressive, going 30 km/ lit. Talo pa compact car diesels.