[Tampa8]

As for keeping away from Hyundai/Kia. I have had great use of three cars now from them maybe because I do take care of them and change oil at the minimum as recommended, only use the correct synthetic, check my oil etc. Use Top tier, and a couple times year spend about an hour using cleaner on the valves in the previous two. Probably no need in this Slipstream.

 

[GeauxTigers]

Just curious how it cleans intake valves, if the fuel never reaches them, to wash over the valve, except for the combustion chamber side. Best to use any of the GDI intake valve cleaners from time to time. Since my '15 Sonata 2.4L does not have MAF, I can remove the throttle body intake hose, start the car, get the idle to stay at 3,000-3,200 rpms, and spray into throttle body. I know it says 2,000, but the engine wants to kill when you spray at that rpm. Afterwards, take it out for a spirited drive, getting those rpms elevated over 3-4,000. If you let it sit after this treatment, a lot of the spray ends up laying in the intake manifold. If you really want to clean your fuel system, get some Berrymans to put in your tank. Read instructions on the can, and use half of what they recommend. Lots of solvents!! I would use this stuff sparingly, and not all the time.. And if you are looking to clean your engine, a little Marvel Mystery oil in the crankcase, say about half a quart, 500-750 miles before changing oil, should do it. I know this is all old school stuff, but it does work, just don't need so much for these new engines.. Techron IS a good product, and I buy the 32oz. bottle when it is on sale. I kept an old 6 oz. injector cleaner bottle to fill when I want to add to my gas tank...

The 2.5 on 2022+ have 8 injectors, 2 per cyl, one in intake and the other in combustion chamber. So intake valves stays cleaned.

 

[drb1956]

My advice, DO NOT put any additive at all in with oil. Old School isn't new School. There is a genuine risk of reducing oil flow in new highly close tolerance oil flow engines. Know who else says not to?

Do Engine Oil Additives Work? - AMSOIL Blog

Our testing revealed red flags with two leading oil additives. Find out if engine oil additives really work here.

blog.amsoil.com

I would be careful using Berryman and dilute to instructions it is caustic. Me personally would not use in a new car under warranty.
The ICE is not a straight GDI engine, it also has fuel ports and will greatly benefit from Top Tier and using Techron additive.

For the Hybrid, It's true in a GDI engine it will be limited benefit on the valves themselves but will assist in other areas. In my last Kia with a GDI engine I did what you say and it appeared to work very well. Used GCI spray cleaner directly into the intake right at the engine. And I also had to rev it over 2,000 RPM to keep running. But it kicked out pieces of carbon and smoke so I know it worked.
ONE great question someone had, what will that do to your Cat Converter.....

Good question about the cat.. I don't think Marvel Mystery oil is that problematic. It will clean over a period of time. It is not a flush, and you CAN put it in your fuel.. The Berrymans is like a once a year thing, or if my idle starts fluctuating, from possibly some bad fuel, or a something is clogged up somewhere in thd fuel system. I buy gas from the same station(s) most of the time. I get rewards from 2 of the brands, and I float back and forth. One is a Top Tier, Mobil, which is a favorite of mine for a lot of years, and the other used to be, Thorntons, but I know for a fact where they get their fuel from-BP, because BP bought Thorntons, but the stations are keeping the name..

 

[dankap50]

Does anyone feel as I do? If you usually run good, Top Tier gas in your car(s), it's a waste of money and of dubious value to pour fuel additives into your gas. It might even void your warranty. Top Tier additives are included in the price of gas, so you're not even paying any more for good quality gas--especially if you buy it at Costco.

 

[Johns2.0T]

Listen Just a FYI from an insider that i talk too not trying to be rude on here or anything... but buying gas the formulation changes on a regular basis especially if you live in USA not saying Canadian gas is any better where im from but from what i know fuel changes formulation constantley on a weekly basis & for that reason i like running a fuel cleaning additive every few

months chevron is good to use because it already has Techron added to it here in Canada theres Shell great fuell especially there Vpower Preamium its good stuff for sure. Costco does have Top Tier fuel but theres a waiting line expected.

 

[rogerdodger2]

Does anyone feel as I do? If you usually run good, Top Tier gas in your car(s), it's a waste of money and of dubious value to pour fuel additives into your gas. It might even void your warranty. Top Tier additives are included in the price of gas, so you're not even paying any more for good quality gas--especially if you buy it at Costco.

I agree with always using Top Tier gas but for direct injected engines in Hybrid/PHEV vehicles, I think adding some extra Techron at oil changes and once between them seems like real cheap insurance to keep the fuel injectors clean. 12oz of that is costing me $4.87 at the current NAPA price, that's an extra gallon of gas (some places) every other month.

And I don't see how it could impact our warranty when Hyundai has issued a TSP suggesting we do it using a product containing Techron. ¯\(ツ)/¯

https://www.hyundai-forums.com/attachments/fuel-additive-pdf.491616/

 

[Freedom1]

Does anyone feel as I do? If you usually run good, Top Tier gas in your car(s), it's a waste of money and of dubious value to pour fuel additives into your gas. It might even void your warranty. Top Tier additives are included in the price of gas, so you're not even paying any more for good quality gas--especially if you buy it at Costco.

No one really knows what is put in those tanks even if it states top tier. Hyundai wants you running an additive which is outside the norm for a manufacturer and there is likely a good reason for it given the number of injector failures.

 

[Tampa8]

Does anyone feel as I do? If you usually run good, Top Tier gas in your car(s), it's a waste of money and of dubious value to pour fuel additives into your gas. It might even void your warranty. Top Tier additives are included in the price of gas, so you're not even paying any more for good quality gas--especially if you buy it at Costco.

No. Hyundai specifically says to use the additive. They built the car, they warranty the car, why would I think they are lying?

 

[Tampa8]

Good question about the cat.. I don't think Marvel Mystery oil is that problematic. It will clean over a period of time. It is not a flush, and you CAN put it in your fuel.. The Berrymans is like a once a year thing, or if my idle starts fluctuating, from possibly some bad fuel, or a something is clogged up somewhere in thd fuel system. I buy gas from the same station(s) most of the time. I get rewards from 2 of the brands, and I float back and forth. One is a Top Tier, Mobil, which is a favorite of mine for a lot of years, and the other used to be, Thorntons, but I know for a fact where they get their fuel from-BP, because BP bought Thorntons, but the stations are keeping the name..

BP is effectively Top Tier even though it is no longer part of Top Tier.
So when you use Thornton's that is Top Tier. Can I 100% prove that, no but common sense says BP didn't decide to make inferior additives.

"All grades of bp and Amoco gasoline with Invigorate® exceed TOP TIER™ detergent requirements and provide enhanced benefits to our consumers, such as cleaning your engine,9 that TOP TIER™ fuels do not."
9 Requires continuous use. Helps to remove existing harmful deposits on critical engine parts and intake valves. As distinguished from the intake valve Keep Clean performance requirements of TOP TIER’sTM Detergent Gasoline Performance Standard.

BP was "Top Tier" before there was that organization, finally joined it, then left it.

 

[HSpeed]

Just curious how it cleans intake valves, if the fuel never reaches them, to wash over the valve, except for the combustion chamber side. Best to use any of the GDI intake valve cleaners from time to time. Since my '15 Sonata 2.4L does not have MAF, I can remove the throttle body intake hose, start the car, get the idle to stay at 3,000-3,200 rpms, and spray into throttle body. I know it says 2,000, but the engine wants to kill when you spray at that rpm. Afterwards, take it out for a spirited drive, getting those rpms elevated over 3-4,000. If you let it sit after this treatment, a lot of the spray ends up laying in the intake manifold. If you really want to clean your fuel system, get some Berrymans to put in your tank. Read instructions on the can, and use half of what they recommend. Lots of solvents!! I would use this stuff sparingly, and not all the time.. And if you are looking to clean your engine, a little Marvel Mystery oil in the crankcase, say about half a quart, 500-750 miles before changing oil, should do it. I know this is all old school stuff, but it does work, just don't need so much for these new engines.. Techron IS a good product, and I buy the 32oz. bottle when it is on sale. I kept an old 6 oz. injector cleaner bottle to fill when I want to add to my gas tank...

That's the exact inquiry I have regarding the Hyundai TSB statement;
"Regular use of Hyundai Fuel System Cleaner Plus with TECHRON® Technology can help address engine carbon deposit related conditions. By removing these deposits, an engine may experience restored engine performance and efficiency, smoother running idle, and cleaner tailpipe emissions"
As I understand it, Carbon build-up in gasoline direct injection (GDI) engines occurs because the fuel is injected directly into the combustion chamber at high pressure, rather than washing over the intake valves. This prevents the fuel from cleaning the valves, which can lead to a buildup of deposits
Believe oil dilution may be more of a concern in GDI and turbo engines.

I use CRC GDI IVD Intake Valve & Turbo Cleaner just prior to performing an oil change;

CRC® GDI IVD® Intake Valve & Turbo Cleaner, 11 Wt Oz

 

[Tampa8]

Listen Just a FYI from an insider that i talk too not trying to be rude on here or anything... but buying gas the formulation changes on a regular basis especially if you live in USA not saying Canadian gas is any better where im from but from what i know fuel changes formulation constantley on a weekly basis & for that reason i like running a fuel cleaning additive every few

months chevron is good to use because it already has Techron added to it here in Canada theres Shell great fuell especially there Vpower Preamium its good stuff for sure. Costco does have Top Tier fuel but theres a waiting line expected.

Fuels additives do not change weekly here. It changes with the seasons Winter or Summer and of course over time newer better ones come along. All the companies you mentioned are here btw.
Buying Shell higher octane to get the increased cleaning is a waste of money imo. First it does nothing at all to help clean your engine unless, and then only maybe - you use it all the time. Just like using Top Tier, you can't use it once then not use it for a few tankfulls. That does nothing.

Second higher octane does nothing to improve the running of the Tucson engine. The highest octane to use is the lowest one that does not result in ping. Higher is a waste of money though it won't do any harm either.

In the U.S. all grades of a Top Tier gasoline have at a minimum the same additives. Premium for some but not all do have more of the same additives according to some like Shell.
That's where Hyundai saying to use Techron occasionally come in to get a little more aggressive cleaning.

 

[Tampa8]

That's the exact inquiry I have regarding the Hyundai TSB statement;
"Regular use of Hyundai Fuel System Cleaner Plus with TECHRON® Technology can help address engine carbon deposit related conditions. By removing these deposits, an engine may experience restored engine performance and efficiency, smoother running idle, and cleaner tailpipe emissions"
As I understand it, Carbon build-up in gasoline direct injection (GDI) engines occurs because the fuel is injected directly into the combustion chamber at high pressure, rather than washing over the intake valves. This prevents the fuel from cleaning the valves, which can lead to a buildup of deposits
Believe oil dilution may be more of a concern in GDI and turbo engines.

I use CRC GDI IVD Intake Valve & Turbo Cleaner just prior to performing an oil change;

CRC® GDI IVD® Intake Valve & Turbo Cleaner, 11 Wt Oz

View attachment 491671 View attachment 491672

Yes, I answered the same above. I have used CRC in the past with good results on my GDI KIA. The ICE Tucson not being strictly GDI would not need it but the Hybrid would benefit from it I believe.

 

[drb1956]

BP is effectively Top Tier even though it is no longer part of Top Tier.
So when you use Thornton's that is Top Tier. Can I 100% prove that, no but common sense says BP didn't decide to make inferior additives.

"All grades of bp and Amoco gasoline with Invigorate® exceed TOP TIER™ detergent requirements and provide enhanced benefits to our consumers, such as cleaning your engine,9 that TOP TIER™ fuels do not."
9 Requires continuous use. Helps to remove existing harmful deposits on critical engine parts and intake valves. As distinguished from the intake valve Keep Clean performance requirements of TOP TIER’sTM Detergent Gasoline Performance Standard.

BP was "Top Tier" before there was that organization, finally joined it, then left it.

Ok. So, with all that being said, at the tanker filling stations, where the tankers get filled for delivery to the stations, all gas is "equal", till the tanker is getting filled. Depending on what station is going to recieve the fuel, the additives, or the "add pack" is added at the time of the tanker filling. Unless it is a specific fuel brand that owns the tanker fill station, then it gets the same add pack every fill. So, even though BP supplies fuel to Thorntons, we don't know if the BP add pack is used, or a portion of it, or any of it, though I would think a portion would be added, for detergent properties. This info I have is from a driver that does this work, and he services Thorntons with a tanker. I have used Thorntons for over 20 years, and have had no problems with their fuel, in 3 different vehicles. I have used fuel additives regularly, and especially now, with '15 Hyundai Sonata SE 2.4L GDI.. The GDI Intake Cleaner IS a good cleaner, that should be used periodically to ensure good engine operation, and drivability.. Top Tier gas, and all fuel additives keep your injectors clean, for good drivability, along with keeping the rest of the fuel system clean, and working at it's best. Cleaning your throttle body periodically also helps with idle, good throttle response, and acceleration. I use the GDI intake valve cleaner for this. I have removed and cleaned mine 4 times since I have owned it, buying it with 40,000 miles in Nov. of 2016. I currently have 94,000 miles on my Sonata, and it runs, and performs as good, if not better than the day I brought it home. Replaced spark plugs not too long ago, using the brand, and model of plugs that came installed from the factory. This helps with fuel economy, and performance. I plan on keeping this vehicle for as long as it will continue to run🤔...

 

[Leonard.p]

that's a bit spendy. you can get 12oz Techron (correct size for Hybrid) for $5.49 at Napa right now.

i am just learning so if the bottle is 12oz and the tank on my car is 13.7 gallons ? i have a tucson limited hybrid will it be ok the 12oz will be okay ? thanks

 

[rogerdodger2]

i am just learning so if the bottle is 12oz and the tank on my car is 13.7 gallons ? i have a tucson limited hybrid will it be ok the 12oz will be okay ? thanks

it is in my opinion, that's 0.88oz/gallon, but if you want to hit the 1oz per gallon exactly, just don't quite fill it all the way up or get a 32oz bottle and add exactly 14oz, bottles are marked well, easy to add to +/-0.5oz.

 

[Leonard.p]

it is in my opinion, that's 0.88oz/gallon, but if you want to hit the 1oz per gallon exactly, just don't quite fill it all the way up or get a 32oz bottle and add exactly 14oz, bottles are marked well, easy to add to +/-0.5oz.

thanks

 

[Dog Patch Steve]

It does cost $25 at the dealer to have them put it in. I don't know what they charge for the 20 0z alone however. As comparison Techron 20 OZ in the parts store is about $17 so they may not be far off.

We (muhkanicks) at our dealer have to pour it in for free ( ihave to walk to part counter and grab the bottle and walk back to car, and pour it in).

The only people making money on the stuff is part dept

 

[Tampa8]

We (muhkanicks) at our dealer have to pour it in for free ( ihave to walk to part counter and grab the bottle and walk back to car, and pour it in).

The only people making money on the stuff is part dept

Thanks, here they quoted $25 for the service, that is to purchase and have them put it in. It is possible they too do not charge to put it in but charge $25 for the bottle...

 

[Gamma500]

Yes, I answered the same above. I have used CRC in the past with good results on my GDI KIA. The ICE Tucson not being strictly GDI would not need it but the Hybrid would benefit from it I believe.

Where would I inject the CRC GDI cleaner on my Tucson HEV...the video says not to spray on Mass airflow sensor...

 

[Big Buford!]

Avoiding getting on the MAF sensor....Directions should be on the can.

CRC web site instructions are here:

How to Use CRC GDI IVD® Intake Valve & Turbo Cleaner

How To Use CRC GDI Intake Valve Cleaner Article by Jefferson BryantInternal combustion is messy business, and all of the byproducts of making power are not limited to the combustion chamber and exhaust, not by a long shot. Gasoline itself is dirty. A

www.crcindustries.com