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Gumout Multi System Tune Up + Seafoam usage Q's #4669494
02/18/18 10:38 AM
02/18/18 10:38 AM
Joined: Feb 2018
Posts: 20
NJ, USA
RyanGreener Offline OP
RyanGreener  Offline OP
Joined: Feb 2018
Posts: 20
NJ, USA
Hey everyone. So I have a beater 1999 Accord that I got for free (and sort of don't care about) but I also got these two products for free. Since it has 191k miles right now, I'd like to experiment. I have a container of Seafoam and Gumout Multi System Tune Up and I'm wondering how I should use them. Gumout Multi System Tune Up seems to have similar ingredients to engine flush formulas (cause it has Naptha or something like that in it), as well as PEA. Seafoam seems to be something else. To be honest, I'm not really familiar with these terms and chemistry and I'm just going off some light reading I've done here on these forums. I was thinking of doing the following at the end of this OCI:

1) Gumout Multi System Tune Up in the Oil - Put it all in the oil, run the car for 15 minutes (as on bottle) then drain the oil.
2) Seafoam in the gas tank

Or do you guys think I should switch it up and do Seafoam in the crank case oil (I hear people drive on this for 100 miles or so before changing the oil) and Gumout Multi System Tune Up in the gas tank? Also, if I were to go with the "engine flush" route, would I pour it in when the engine is dead cold, or mildly warm, or right after the oil was at operating temperature? Thanks for the advice!

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669515
02/18/18 10:52 AM
02/18/18 10:52 AM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
Split each bottle in half the you can run the test both ways


Cable ties should hold it
Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: Olas] #4669523
02/18/18 11:04 AM
02/18/18 11:04 AM
Joined: Jul 2012
Posts: 379
Michigan
khittner Offline
khittner  Offline
Joined: Jul 2012
Posts: 379
Michigan
It depends on which system you want to clean--fuel induction and combustion chamber (put it in the fuel), or lubrication system (put it in the oil for whatever time is specified). There are some videos that seem to show that the Gumout cleaner does a decent job of taking some carbon off of piston crowns when used in the fuel, but each to his own variety of "snake oil".

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: khittner] #4669525
02/18/18 11:06 AM
02/18/18 11:06 AM
Joined: Feb 2018
Posts: 20
NJ, USA
RyanGreener Offline OP
RyanGreener  Offline OP
Joined: Feb 2018
Posts: 20
NJ, USA
Well I mean, I want to do both systems, but I wonder which one is better suited to whichever purpose. You know? I got them for free so I'm not really too worried if they're truly effective, but I figure I want to try based on theories/guesses.

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669541
02/18/18 11:20 AM
02/18/18 11:20 AM
Joined: Jul 2012
Posts: 379
Michigan
khittner Offline
khittner  Offline
Joined: Jul 2012
Posts: 379
Michigan
My lubrication systems seem to be clean ehough in most of my cars that additional solvents don't seem to do much, but the Gumout, run through a couple of tanks of my pickup truck's ('95 Dakota, 3.9 liter V-6, 220K miles) fuel system, seems to have eliminated some pinging that I was getting in 4th and 5th gears, so without any borescope evidence, I'm guessing that it did some de-carboning of the pistons.

Last edited by khittner; 02/18/18 11:23 AM.
Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669543
02/18/18 11:23 AM
02/18/18 11:23 AM
Joined: Dec 2016
Posts: 6,270
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,270
Waco, TX
Gumout Multi System Tune Up is really deigned for fuel use, not oil.

Seafoam is just alcohol and mineral oil. I refuse to pay so much $$$ to support that company.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: Linctex] #4669552
02/18/18 11:27 AM
02/18/18 11:27 AM
Joined: Feb 2018
Posts: 20
NJ, USA
RyanGreener Offline OP
RyanGreener  Offline OP
Joined: Feb 2018
Posts: 20
NJ, USA
Originally Posted By: Linctex
Gumout Multi System Tune Up is really deigned for fuel use, not oil.

Seafoam is just alcohol and mineral oil. I refuse to pay so much $$$ to support that company.


Well, this settles it. I'll use GMSTU on fuel and seafoam for the crank case. Not sure if I'll do the "few hundred miles" method or just use it as an engine flush.

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669602
02/18/18 12:02 PM
02/18/18 12:02 PM
Joined: Jul 2013
Posts: 2,213
Outer Banks, NC
NormanBuntz Offline
NormanBuntz  Offline
Joined: Jul 2013
Posts: 2,213
Outer Banks, NC
Honda recommends against the use of oil additives. I'd use the Seafoam only if you're desperate or if you have a known engine sludge problem. My take is that both products are well suited for the fuel system.


2017 Honda Odyssey SE, 15K
2013 Honda Accord LX, 58K
2007 Honda Ridgeline RTS, 87K
2007 Infiniti M35, 106K
Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669754
02/18/18 01:40 PM
02/18/18 01:40 PM
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
I wouldnt mix either in engine oil. Run them each on their own in the gas tank one fill after the other.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4669802
02/18/18 02:39 PM
02/18/18 02:39 PM
Joined: Feb 2018
Posts: 20
NJ, USA
RyanGreener Offline OP
RyanGreener  Offline OP
Joined: Feb 2018
Posts: 20
NJ, USA
Upon second thoughts, I guess they're both going in the gas tanks. Thanks guys.

Re: Gumout Multi System Tune Up + Seafoam usage Q's [Re: RyanGreener] #4696539
03/16/18 10:09 AM
03/16/18 10:09 AM
Joined: May 2010
Posts: 1,068
Ocala, Florida
racin4ds Offline
racin4ds  Offline
Joined: May 2010
Posts: 1,068
Ocala, Florida
The Gumout stuff is an excellent fuel system cleaner and has a pretty high amount of PEA from what I hear. I've used it in my OPE and vehicles with decent success. Its my new go-to versus high dollar SeaFoam.


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
08 Legacy GT
2008 Kawasaki Ninja 650R

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