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MMO for GDI Engines ? #4524511
09/24/17 03:53 AM
09/24/17 03:53 AM
Joined: Sep 2010
Posts: 2,026
GA.
ChrisD46 Offline OP
ChrisD46  Offline OP
Joined: Sep 2010
Posts: 2,026
GA.
For many GDI engines it may not touch intake valves - any other good for MMO in a GDI engine ?


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524522
09/24/17 04:39 AM
09/24/17 04:39 AM
Joined: Sep 2014
Posts: 1,424
Seattle-ish, WA
Oro_O Offline
Oro_O  Offline
Joined: Sep 2014
Posts: 1,424
Seattle-ish, WA
Yes. All of the other documented benefits besides intake valve cleaning.

Was this actually a not very clever trick question?

Re: MMO for GDI Engines ? [Re: ChrisD46] #4524546
09/24/17 06:57 AM
09/24/17 06:57 AM
Joined: Mar 2004
Posts: 20,760
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,760
Upstate NY
Forget MMO.

Use Techron as per directions.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524561
09/24/17 07:28 AM
09/24/17 07:28 AM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,088
New Jersey
Op what are you trying to do? Enhance kubricity for the hpfp?

Re: MMO for GDI Engines ? [Re: Oro_O] #4524575
09/24/17 07:55 AM
09/24/17 07:55 AM
Joined: Dec 2005
Posts: 9,908
Upper Midwest
kschachn Online content
kschachn  Online Content
Joined: Dec 2005
Posts: 9,908
Upper Midwest
Originally Posted By: Oro_O
Yes. All of the other documented benefits besides intake valve cleaning.

I went to the Marvel Mystery Oil website and I couldn't find any documentation on the benefits. I thought it might be under Downloads, but there was only a screensaver and wallpaper available there.

All I could find is a section titled "Marvel Tales" which is apparently a collection of testimonials. Do you have any links? Don't "documented benefits" require documentation?


1994 BMW 530i, 229K
1996 Honda Accord, 263K
1999 Toyota Sienna, 402K
2000 Toyota ECHO, 272K
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524583
09/24/17 08:06 AM
09/24/17 08:06 AM
Joined: Jul 2005
Posts: 30,458
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,458
NY
From what I've seen tearing down engines that have used it, if I owned a GDI engine it would go in every tank of gas. Then I could find out for myself if it works or not in GDI applications. wink


God Bless Our Troops

Re: MMO for GDI Engines ? [Re: kschachn] #4524596
09/24/17 08:21 AM
09/24/17 08:21 AM
Joined: Mar 2004
Posts: 20,760
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,760
Upstate NY
Originally Posted By: kschachn
Originally Posted By: Oro_O
Yes. All of the other documented benefits besides intake valve cleaning.

I went to the Marvel Mystery Oil website and I couldn't find any documentation on the benefits. I thought it might be under Downloads, but there was only a screensaver and wallpaper available there.

All I could find is a section titled "Marvel Tales" which is apparently a collection of testimonials. Do you have any links? Don't "documented benefits" require documentation?


Your getting into the world of creative marketing. They can document something but not publish it.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524613
09/24/17 08:47 AM
09/24/17 08:47 AM
Joined: Sep 2010
Posts: 2,026
GA.
ChrisD46 Offline OP
ChrisD46  Offline OP
Joined: Sep 2010
Posts: 2,026
GA.
Main concern with using anything but Gumout or Techron in GDI would possibly be the sensitive design of the high pressure fuel injectors ?

Last edited by ChrisD46; 09/24/17 08:47 AM.

2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524647
09/24/17 09:32 AM
09/24/17 09:32 AM
Joined: Apr 2005
Posts: 544
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 544
NE Ohio
Read your 2017's owners manual.

Recommends using Hyundai fuel system cleaner - which is Techron.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524651
09/24/17 09:38 AM
09/24/17 09:38 AM
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
TECHRON. Forget about MMO.

Re: MMO for GDI Engines ? [Re: knerml] #4524705
09/24/17 10:37 AM
09/24/17 10:37 AM
Joined: Jul 2005
Posts: 30,458
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,458
NY
Originally Posted By: knerml
Read your 2017's owners manual.

Recommends using Hyundai fuel system cleaner - which is Techron.


How often do they recommend using it?


God Bless Our Troops

Re: MMO for GDI Engines ? [Re: ChrisD46] #4524725
09/24/17 10:55 AM
09/24/17 10:55 AM
Joined: Apr 2005
Posts: 544
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 544
NE Ohio
For my 2015, 7,500mi/12mo if not using top tier fuel


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: MMO for GDI Engines ? [Re: ChrisD46] #4524759
09/24/17 11:31 AM
09/24/17 11:31 AM
Joined: Jan 2011
Posts: 306
Los Angeles, CA
190E26FTW Offline
190E26FTW  Offline
Joined: Jan 2011
Posts: 306
Los Angeles, CA
TEchron works but is slower than I like. I like Redline SL1.....works a lot faster to clean up fuel system.

Re: MMO for GDI Engines ? [Re: knerml] #4524762
09/24/17 11:34 AM
09/24/17 11:34 AM
Joined: Jul 2005
Posts: 30,458
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,458
NY
Originally Posted By: knerml
For my 2015, 7,500mi/12mo if not using top tier fuel


I'm wondering if a maintenance dose at every tank would be a better approach? Using a cleaner like Red Line's FI cleaner which can be used at a lower concentrate as a maintenance dose product. Techron OTOH doesn't recommend using their product that way. I'd rather keep the problem in check vs. wait 7.5k miles or a year.


God Bless Our Troops

Re: MMO for GDI Engines ? [Re: ChrisD46] #4524773
09/24/17 11:50 AM
09/24/17 11:50 AM
Joined: Apr 2005
Posts: 544
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 544
NE Ohio
I use it in all my cars every 6 months, even since Audi recommended it for my 1989 90 Quattro.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
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