Fuel treatment

[svensk]

Fuel treatment does nothing for DI motors. Not sure if any of the big car manufacturers have found a way for DI intake valves to self clean yet. I think I heard there are a couple that spray just a bit of fuel purposely over the valves to help them stay clean.

 

[Mark_888]

Fuel treatment does nothing for DI motors. Not sure if any of the big car manufacturers have found a way for DI intake valves to self clean yet. I think I heard there are a couple that spray just a bit of fuel purposely over the valves to help them stay clean.

I have heard that some manufacturers like Toyota make hybrid DI systems that do that.

 

[Mark_888]

VTOh, and about warranty denials, while this may occur, it has never occurred specific to Techron and that HAS actually shown up in Federal Court

Not likely for Hyundai, since the Hyundai Fuel Injector Cleaner that is sold at Hyundai dealer parts departments is made for Hyundai by Chevron, and is the same as Chevron Fuel Injector Cleaner. This can be verified by closely examining the plastic bottles of the Hyundai and the Chevron products, and also by noticing on the Hyundai product label that says it contains "Techron," which is a registered trademark of Chevron.

 

[Ram Air]

I have been using Shell V Power for about 6 fill-ups now. It has made a noticeable reduction in carbon buildup on the rear bumper. I can only assume that there is a similar reduction in the cylinder heads. No rough idle when I cold start it in the morning either.

 

[TR8Man]

Ok...so if I use, Chevron gas, Techron Cleaner or....something else to "clean my engine "...wouldn't that show up on my bumper? If I don't have any " crud " on my bumper, wouldn't it be in my engine? This is a conundrum to me....My Equus, I know where I am...Genesis Forum...same engine, though...plus I traded my '14 R-Spec for a '14 Equus.....so...back to my question......Where is the " crud " best kept....my engine or my bumper? Bottom Line: We have a problem....our fuel is not completely used by our engines...remember we have catalytic converters to " clean our exhaust " because of incomplete combustion. Why? Our fuel isn't designed to optimally burn. I wonder if higher octane, like race fuel, would be beneficial? Sorry, for my rant. ..... Where does the " crud " belong...engine or bumper?

 

[Ram Air]

Good question, TR8 Man. All I know is that direct injection engines may, in the future, have a particulate filter. For some reason when I use cheap gas and floor it on the highway, looking back through the rear view mirror, the exhaust makes it looks like I'm driving a diesel. Some high performance Lexus models have 2 sets of injectors. Port injectors for low power demand and direct injection for when power demand is high. Maybe that's the way to go.

 

[TR8Man]

Ok. I took my Equus in to the dealership for a wash. It's been more than two ( 2 ) weeks and the soot build up on my exhaust tips and bumper is disgusting. That soot is either in my engine or on my bumper. I got to meet with the lead technician and ask about my " problem " .... He said Hyundai told them " this is not a problem " and they point to other Hyundai's to justify their position. This stuff is staining my bumper ( white car ). I have about 5400 miles. I use " good " fuel. I run Techron about every other tank of fuel...plus I have to look high and low to run Chevron fuel...( not many Chevron stations in Dallas ) ....I'm doing what I believe will help mitigate the issue.....but...I intend to reach out to Hyundai because I think this IS a problem and I want to get to the bottom of it. The tech is checking his sources to see if their might be something he could do.

Any advice? Tips? Thoughts?

 

[Mark_888]

Ok. I took my Equus in to the dealership for a wash. It's been more than two ( 2 ) weeks and the soot build up on my exhaust tips and bumper is disgusting. That soot is either in my engine or on my bumper. I got to meet with the lead technician and ask about my " problem " .... He said Hyundai told them " this is not a problem " and they point to other Hyundai's to justify their position. This stuff is staining my bumper ( white car ). I have about 5400 miles. I use " good " fuel. I run Techron about every other tank of fuel...plus I have to look high and low to run Chevron fuel...( not many Chevron stations in Dallas ) ....I'm doing what I believe will help mitigate the issue.....but...I intend to reach out to Hyundai because I think this IS a problem and I want to get to the bottom of it. The tech is checking his sources to see if their might be something he could do.

Any advice? Tips? Thoughts?

It seems to be normal for the GDI engine. I would do a good job of cleaning the pipes and bumper, and then apply two coats of a good synthetic car wax to each. The wax should make it a little easier to clean in the future.

 

[TR8Man]

h

It seems to be normal for the GDI engine. I would do a good job of cleaning the pipes and bumper, and then apply two coats of a good synthetic car wax to each. The wax should make it a little easier to clean in the future.

I understand your perspective, however, " normal " is not a reasonable answer. I shouldn't have to compensate for an engine that spews " soot " staining my paint and exhaust tips. Why is Hyundai making their problem - incomplete burn of the fuel in the combustion chamber - my problem? An alternative is to NOT use a cleaner and leave the soot in my engine.....really...then the warranty will have to be used to repair the engine? Think how silly that sounds....by the way, I sent an email to Hyundai, this evening. I'll let everyone know what I hear...if anything. I may have to resort to Twitter.....turns out to be the best way to complain these days. Just about every company monitors Social Media. If you can't tell by my written tone, I'm not a happy camper right now.....Oh yeah, I've ordered some stuff I hope will help me clean the back of the car....I'm not going to run around with it looking like it does......

 

[Mark_888]

h

I understand your perspective, however, " normal " is not a reasonable answer. I shouldn't have to compensate for an engine that spews " soot " staining my paint and exhaust tips. Why is Hyundai making their problem - incomplete burn of the fuel in the combustion chamber - my problem? An alternative is to NOT use a cleaner and leave the soot in my engine.....really...then the warranty will have to be used to repair the engine? Think how silly that sounds....by the way, I sent an email to Hyundai, this evening. I'll let everyone know what I hear...if anything. I may have to resort to Twitter.....turns out to be the best way to complain these days. Just about every company monitors Social Media. If you can't tell by my written tone, I'm not a happy camper right now.....Oh yeah, I've ordered some stuff I hope will help me clean the back of the car....I'm not going to run around with it looking like it does......

I tried to explain to you that everyone else with the Hyundai GDI has experienced the same issue, so in that sense it is normal for the Hyundai GDI engines. I doubt that it is an incomplete burn, but just a byproduct of Gasoline Direct Injection. GDI borrows technology from diesel engines, and everyone knows how dirty diesels are, but gas mileage is improved and HP is improved. I don't believe it is related to any fuel treatments.

There are plenty of other discussions in this forum about this same subject. There is no reason to attack me. I don't have a perspective, other than telling you what everyone else on this forum has also experienced.

In addition to "cleaning" the bumper and tailpipe, I would recommend at least two coats of a good synthetic wax, so it will be much easier to clean it in the future. The soot seems to stick much easier to bare paint, compared to paint with a good wax surface on it.

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[TR8Man]

Mark_888 - I do not have an issue with you or your " perspective ". I get to learn every day and your " perspective " contributes to my learning. My problem is with Hyundai. To say that "..this is normal for GDI engines... " is not acceptable. Why do we, as owners, have to " clean up their mess..? " What if we do damage to our car trying to clean off the soot? Are we responsible? Is it covered by warranty? What if the warranty has expired, then what? Does Hyundai have preferred methods, products, etc. to clean up the soot? By the way, is calling this soot, correct? Bottom Line: As a supporting member of this forum, I appreciate every opinion, perspective, contributor here whether I agree or not isn't important. I get to learn and I grateful.

 

[Mark_888]

To say that "..this is normal for GDI engines... " is not acceptable.

There are only two options that I know of:

1. Hyundai "fixes" the soot issue. I doubt that they can do that, since everyone else has the same problem.
2. Ask them to buy your car back from you at full price you paid for it.

 

[TR8Man]

There are only two options that I know of:

1. Hyundai "fixes" the soot issue. I doubt that they can do that, since everyone else has the same problem.
2. Ask them to buy your car back from you at full price you paid for it.

You're probably right. What are the odds of either?

 

[TR8Man]

So, I've begun the conversation with Hyundai and it appears they are sincere in addressing my issue - " Soot " - I am giving Hyundai the benefit of the doubt and will let everyone know how things evolve....Any ideas or inputs are welcome!!

 

[TR8Man]

So, I met with a representative from Hyundai. He is new to his role and said he's going to try to help resolve the issue - Soot!! I believe he has honorable intentions and am looking forward to hearing what he learns. Part of my issue is " if I have to live with soot "...what products does Hyundai recommend to clean the exhaust tips and the paint? I want more than...."...something that won't hurt paint...." leaving open all sorts of other stuff that I'm not interested in...finger pointing.....blah blah blah....because this will impact resale value....In the mean time, he's forwarded the following links for my review. I haven't gone through them, yet, though I suspect they will continue to " explain " the characteristics of a GDI, soot, etc. I'd love to hear y'all's thoughts. More to come.....soot continues...

http://auto.howstuffworks.com/direct-injection-engine5.htm

http://www.planet-9.com/911-complaints/31238-tail-pipe-soot-w-dfi.html

http://www.roadandtrack.com/boot/the-fixer-expert-repair-advice-since-2013-65-2-roa0913

http://www.focusst.org/forum/focus-st-discussions/26889-exhaust-soot-2.html

 

[TR8Man]

Just went through the links above....and as I thought, a big bag of nothing. Folks are not happy, express their frustrations while in the end nothing is addressed. The fact that some mfg's like Audi are experiencing valve issues might help, but......starting to realize I may not have much recourse.....

 

[shagnat]

You can't be serious. Is this another myth from 40 years ago?

Just because it's something you didn't know about FIRST, doesn't mean it's not true. But, that's your MO. *sigh*

 

[Mark_888]

Just because it's something you didn't know about FIRST, doesn't mean it's not true. But, that's your MO. *sigh*

It's not a question of whether I knew about it first. I just don't believe that is a good idea on a modern engine. It "may" have worked 40 years ago, but I would not try that on a modern engine with fuel injection or direct injection and computer controlled combustion. Certainly, if a dealer found out about it, and there was any kind of problem, it would void the warranty.

 

[shagnat]

I couldn't say, but I absolutely guarantee that if Hyundai found out, and there was a problem with your engine, they would void the warranty, and Hyundai's voiding of the warranty would hold up in court.

I personally am not interested in old wives tales. I do have a rear view mirror in my car, but I try not view everything with it.

You are a piece of work, Mark..... gawd, if you don't know it first, then it's just not a good idea............ in your mind. There is none so blind as he who will not see..... sums you up to a T.