[Hornet]

Well I just do not know what to do. My "A" Grade Mechanic friend says with the high pressure Hyundai CRDI fuel system it is not wise to use Injector Cleaner on a regular basis. My Hyundai dealer says it is necessary at the 30,000 km service and provides a container of genuine Hyundai Injector Cleaner for me to use when I next fill the tank. My mechanic friend says the Injector Cleaner removes all lubrication in the very high pressure injector pump and this will in time result in early failure of the injector pump. He says do not use the cleaner until the i30 runs poorly. It is running perfect at the moment.
I do not wish to void the warranty but my friend is a Diesel Expert who serviced my previous diesel vehicle from new and it did 530,000 km trouble free motoring.
I value the opinions of Members of this Club and look forward to some advice and opinions. Thanks
My i.30 is a late 2011 Auto 1.6l CRDI.

[Phil №❶]

I can't see Hy setting themselves up for multiple fuel pump failures.

[asathorny]

Well I just do not know what to do. My "A" Grade Mechanic friend says with the high pressure Hyundai CRDI fuel system it is not wise to use Injector Cleaner on a regular basis. My Hyundai dealer says it is necessary at the 30,000 km service and provides a container of genuine Hyundai Injector Cleaner for me to use when I next fill the tank. My mechanic friend says the Injector Cleaner removes all lubrication in the very high pressure injector pump and this will in time result in early failure of the injector pump. He says do not use the cleaner until the i30 runs poorly. It is running perfect at the moment.
I do not wish to void the warranty but my friend is a Diesel Expert who serviced my previous diesel vehicle from new and it did 530,000 km trouble free motoring.
I value the opinions of Members of this Club and look forward to some advice and opinions. Thanks
My i.30 is a late 2011 Auto 1.6l CRDI.

There are several contradictory positions, for instance:-   each time my car has gone for service (at a Hy dealership) they have urged me to have the oil system flushed using their flushing oil.  I refused the offer on each occasion and on the last occasion, having lost my rag with them, I took the Hyundai MANUFACTURERS advice with me and gave it too them.  The MANUFACTURER specifically recommend that flushing oil NEVER be used on their engines as this will damage the internal seals and may caused the engine considerable damage.

My advice, for what it's worht is :-  if it ain't broke, it don't need fixing.

The dealership is there for one reason, and one reason only, which is too make profit from the likes of you and I.   

[Dazzler]

Very well said ASA (thanks)

[Doggie 1]

If your diesel expert serviced your previous diesel and it did 530,000 trouble-free kms, I think I would be listening to him.

[rustynutz]

Well, I can't see Hyundai recommending the use of a product that is likely to cause damage, especially when they are offering a 5 year unlimited kilometre warranty. 

[asathorny]

Well, I can't see Hyundai recommending the use of a product that is likely to cause damage, especially when they are offering a 5 year unlimited kilometre warranty. 

Well Rusty I assure you that I am not telling lies and they did ask me to have the engine flushed...     The evidence that Hyundai do not recommend this course  of action is on this form   !!!!!!!!!!!!!!!

Still, you believe whatever you want  <sigh>   

[rustynutz]

No need to get your knickers in a twist, Asa....

[Asterix]

Well, I can't see Hyundai recommending the use of a product that is likely to cause damage, especially when they are offering a 5 year unlimited kilometre warranty. 

But according to ASA there's a big gap between what the dealer recommend and what the manufacturer recommend.

Remember, if the dealer can make 5 £ extra on every service, that generates a lot of money per year.

[Hornet]

Thanks for the comments you all have given. I accept that Hyundai would not recommend a procedure that exposed them to warranty replacement of injector pumps during the 5 year term. Clean injectors keep our i30s performing well and give best fuel consumption and this I see as Hyundai's main aim during the warranty period. On average an i30 would complete say 100,000 km in the 5 year warranty period after that Hyundai are not concerned.  One might even believe that Hyundai, like all manufacturers, have a desire for their customers to purchase a new product shortly after the warranty expires. If it is accepted the injector pump will last more than 100,000 km (5 years) using injector cleaner but not as long if it was not used on a regular basis, Hyundai would naturally recommend the regular use of injector cleaner thus opting for better performance over longevity of service of the product.
I think at this time, I will sidestep the use of the injector cleaner until poor performance dictates the need for use. I like the theory "If the wheels not broken don't fix it" . 
Thanks so much for your response 

[rustynutz]

Well I just do not know what to do. My "A" Grade Mechanic friend says with the high pressure Hyundai CRDI fuel system it is not wise to use Injector Cleaner on a regular basis. My Hyundai dealer says it is necessary at the 30,000 km service and provides a container of genuine Hyundai Injector Cleaner for me to use when I next fill the tank.

Is the use of an injector cleaner at the 30,000k service classed as being used on a regular basis?

I like the theory "If the wheels not broken don't fix it" . 

I quite like "An ounce of prevention is worth a pound of cure"   

[Aussie Keith]

According to my research on modern diesel fuel, manufactures claim their products clean injectors anyway.

https://www.i30ownersclub.com/forum/index.php?topic=21011.0

Therefore why use an additive when there are already additives in your fuel that do this?

I would stick with the manufacturers recommendation over the dealers recommendation on this one.

[Aussie Keith]

Further to my earlier comments, Hyundai's documentation states nothing about using additives. This suggests its not a requirement but may be prescribed for poor running vehicles where blocked injectors may be an issue. This would be cheaper than removing and replacing injectors which I hear are stupidly expensive. So if the dealer can get you to pay to put an additive in the car to ward off a possible warranty job on injectors... well that's what it sounds like to me.

It does state that fuels used in these cars must conform to the EN590 standard.

http://www.dmetrade.com/index.php/diesel-fuel-en590

In Oz, that's all we have at the pump. And as noted they all claim to clean your injectors anyway.

http://www.caltex.com.au/PRODUCTSANDSERVICES/Pages/ProductDescription.aspx?ID=1786 << for example.



So I'm still thinking not worth doing.

[rustynutz]

So far we've had one hearsay comment saying that it is not wise to use injector cleaners regularly.
Surely we need more than that before we shit-can them? 

Btw, it seems no one is actually saying they should be used regularly, not even the Hyundai dealer in question.....

Further to my earlier comments, Hyundai's documentation states nothing about using additives.

http://www.customercare.hyundai.co.in/subindex_Additives-24.aspx

[Hornet]

Injector Cleaner was used in my i30 at 15,000 km because of faulty performance. It worked and the machine has been A OK since. Now at 30,000 it is still A OK but I am told to use another bottle of Hyundai injector cleaner. I believe the use of injector cleaner is a part of each 30,000 service. I believe 15,000, 30,000 and every 30,000 thereafter could be excessive and  may provide me with smooth performance but quickly destroy the injector pump. And that is what my friend (Diesel expert) said to me.
While the injector cleaner may remove lubrication in the pump and accelerate wear, I have read any build up of sludge or other matter in the pump will also accelerate wear.
So, "injector cleaner or no injector cleaner" is my concern.

[Phil №❶]

What dosage are we talking about here 

[rustynutz]

Thanks for the extra info, Hornet!

I think a tank of treated fuel every 15,000k is nothing....
If injector cleaner was causing premature wear and other issues then surely the net would be full of complaints?
The lack of them would suggest you're worrying needlessly....

[Aussie Keith]

So far we've had one hearsay comment saying that it is not wise to use injector cleaners regularly.
Surely we need more than that before we shit-can them? 

Btw, it seems no one is actually saying they should be used regularly, not even the Hyundai dealer in question.....

Further to my earlier comments, Hyundai's documentation states nothing about using additives.

http://www.customercare.hyundai.co.in/subindex_Additives-24.aspx

Who knew? God bless the interwebz. The user manual is bereft of such wisdom sadly. But it seems as you stated there is no issue with using them infrequently. Now I am wondering what is in this injector cleaner. That would be worth knowing.

[Aussie Keith]

http://www.nulon.com.au/support/msds/MSDS-dic-Diesel_Injector_Cleaner

Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME                                                                        CAS RN       %
naphtha petroleum, heavy, hydrodesulfurised       64742-82-1. >60
solvent naphtha petroleum, heavy aromatic          64742-94-5  10-30
naphthalene                                                          91-20-3         <1^

[rustynutz]

Bloody mothballs!   

[Phil №❶]

There's an early thread in the fuel section on how to make your own IIRC

[Hornet]

Question was "What dosage are we talking about here"

250 ml Fuel Injector Cleaner. It only says contains 675 Grams/ LItre LIQUID HYDROCARBONS and Use at service intervals.

[Doggie 1]

I've heard that popping a couple of Viagra pills in with the oil works wonders.
Makes the car really get up and go and go and go and go and go......... (but can make the ride feel a bit stiff).

[Aussie Keith]

Question was "What dosage are we talking about here"

250 ml Fuel Injector Cleaner. It only says contains 675 Grams/ LItre LIQUID HYDROCARBONS and Use at service intervals.

So not much really and likely a higher concentration that in the fuel you buy.

[Aussie Keith]

Here's an interesting and unrelated snippet.

This is the MSDS for Caltex Vortex:

http://www.caltex.com.au/sites/Marine/MSDS/Marine%20Gas%20Oil%20-%20MSDS.pdf

And here for the 0-10% component:

http://www.natbiogroup.com/docs/msds_a4_sbd_20090116.pdf

So apparently Vortex is up to 10% SOYBIODIESEL... Who knew?

[2i30s]

Question was "What dosage are we talking about here"

250 ml Fuel Injector Cleaner. It only says contains 675 Grams/ LItre LIQUID HYDROCARBONS and Use at service intervals.

that's what we use at work to soak our spray guns in overnight,its a triple strength paint thinner.     we need Brian for this one,he knows chemicals. 

[bryanj86]

I just went and read my last service receipt papers and it said they had used (I had been charged for at least) Hyundai Fuel Injection Cleaner. That service was a 45,000km service. 

[Just Rick]

If we are to beleive the fuel companies,use the premium deisel,vortex,ultimate,can't remeber the name of the shell one,there should be absolutely no need to use injector cleaners at any stage.

But I can also see what others are saying Hy surely would not recommend a practice which would cause them warranty issues,especially with the five year unlimited Klm warranty,not too many other car companies offer that,most cut out at 100,000K's,so if I was to buy one of their cars,both mine would almost be out of warranty at just over twelve months old.

I can also see what others are saying Hy like any business are there to screw you out of your money,to line their coffers

[Sparkyinaus]

I read an article a while back that gave the reason for Mercedes,VW, Land Rover not releasing their "high performance" diesels here was that compared to Europe, the fuel quality here was significantly lower & it had a lot more sulphur content, like the truck grade stuff they used to have back in Europe.
I used to be connected to the motor trade & my main clients were BMW, Mercedes, Land Rover, I saw e320 diesels come in for their first service at 18000 MILES! & these had the dreaded DPF on them!
I had a VW Vento VR6 back then, tried a 150 BHP golf gt tdi anniversary, absolutely blew me away, & that was @ 15 years ago!

[Aussie Keith]

So far we've had one hearsay comment saying that it is not wise to use injector cleaners regularly.
Surely we need more than that before we shit-can them? 

Btw, it seems no one is actually saying they should be used regularly, not even the Hyundai dealer in question.....

Further to my earlier comments, Hyundai's documentation states nothing about using additives.

http://www.customercare.hyundai.co.in/subindex_Additives-24.aspx

Just running back through the thread and noticed the link is for India not Oz. I would be amazed if the Indian fuel quality was anything like here for a start. Nonetheless, here are the claims from Hyundai India for these additives:

Benefits

    5 to 10% improvement in fuel efficiency.
    It cleans fuel injectors.
    Increases pump and injector life by improving lubrication.
    Improves low temperature operation from wax modification by reducing crystal size and inhibiting wax crystal migration.
    Combustion improver helps in better combustion of diesel fuel.
    Reduced ice crystal formation in fuel lines and on fuel filter. Provides maximum fuel filter life.
    Corrosion inhibition for fuel line, pipelines and storage tanks by reducing moisture condensation.

I'll restate that our local fuels already contain additives for cleaning injectors (and anti foaming and a few other things besides). While fuel additives probably are not as necessary here as they might be in other places its unlikely its going to hurt either.