Recent Topics
It's AMSOILŪ, not Amsoil
by Rat407
06/25/18 06:39 AM
VW Passat 2007
by madRiver
06/25/18 06:18 AM
Review: CVJ Remanufactured CV Axles
by The Critic
06/25/18 03:40 AM
Towing without 85w140?
by OilFilters
06/25/18 03:07 AM
2015 VW GTI autobahn oil questions
by Skyalbo
06/24/18 11:28 PM
Corrosion in the garage - salt or humidity?
by Kurtatron
06/24/18 11:13 PM
Darn dogs
by AZjeff
06/24/18 10:21 PM
New GC?
by Bullwinkle007
06/24/18 10:04 PM
The guy with the plexiglass head on you tube
by andyd
06/24/18 09:21 PM
'07 Pacifica Timing Belt Replacement success
by 92saturnsl2
06/24/18 09:10 PM
SAE 90 v 85/140
by Knuckle078
06/24/18 09:10 PM
Mobil 1 5W30-HM 5,011 mi, 1999 Ford Escort
by WA1DH
06/24/18 08:45 PM
Schaeffer's oil reviews on Amazon
by zfasts03
06/24/18 07:41 PM
Decent MP3 player
by Ed_T
06/24/18 07:08 PM
by Donald
06/24/18 06:52 PM
Tire buying advice
by supton
06/24/18 06:23 PM
Two versions of M1 5w30 ESP now?
by Patman
06/24/18 06:21 PM
No older cars in New York State?
by Oldtom
06/24/18 06:19 PM
2009 Taurus strut mount noise
by terry274
06/24/18 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
06/24/18 03:36 PM
Newest Members
dhy808, ROD_Z, lozpxs, danthemanx07, FunktasticLucky
65319 Registered Users
Who's Online
65 registered (2009Edge, 2015_PSD, aquariuscsm, 97K15004WD, 4WD, 8 invisible), 1093 Guests and 31 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65319 Members
67 Forums
285956 Topics
4771943 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4431289 - 06/14/17 01:05 PM Best Fuel System Cleaner?
billt460 Offline

Registered: 03/30/15
Posts: 4416
Loc: Glendale, Arizona
Is there even one? If so, which have you had the best luck with? I'm talking about the, "pour in the tank and drive", fuel system and fuel injector cleaners. I've heard Gumout Multi-System Tune Up is good for the newer engines. I know one can doesn't do much. Most people run several cans through before they notice a change. There are so many of these types of engine cleaners on the market, I wondered if one is any better than the other. Also, can any of them damage your catalytic converter?

#4431290 - 06/14/17 01:14 PM Re: Best Fuel System Cleaner? [Re: billt460]
HemiHawk Online   sick

Registered: 03/09/16
Posts: 842
Loc: PA,US
I've searched and never found any real evidence that any of them do very much. Youtube wrench ChrisFix tested a couple with varying results, but most were unimpressive. I used Redline's SI-1 several times, no idea if it had any impact. On my old 4.0 Jeep it seemed to help with some pinging/stalling off the line but thats about it.

The one thing I've seen that was actually studied was the effects of top tier fuel on valve and piston cleanliness. Seems that has the biggest impact. It would work overtime of course, but it doesn't seem there is a magic bottle/can on the market that will do it in one tank anyway.
2016 Nissan Frontier Pro4x
2017 VW GTI sport
1997 Jeep GC 4.0

#4431303 - 06/14/17 01:24 PM Re: Best Fuel System Cleaner? [Re: billt460]
Hollow Offline

Registered: 02/29/08
Posts: 1311
Loc: the South
If only there were an entire subforum dedicated to this very topic...

#4431331 - 06/14/17 01:52 PM Re: Best Fuel System Cleaner? [Re: billt460]
andrewp1998 Offline

Registered: 10/18/08
Posts: 853
chris fix had good results with seafoam. i have seen decent results with chemtool as well
2001 Honda civic HX vtecE- 5 spd,230k+

#4431356 - 06/14/17 02:19 PM Re: Best Fuel System Cleaner? [Re: billt460]
OneEyeJack Offline

Registered: 09/14/10
Posts: 7480
Loc: S California
The best means consistent, frequent periodic treatment. A little each time, not one big blast every now and then. This includes using good fuel and keeping up with the filter(s).

#4431361 - 06/14/17 02:23 PM Re: Best Fuel System Cleaner? [Re: billt460]
Tdbo Offline

Registered: 08/18/09
Posts: 3227
Loc: Ohio
I used to think not much, although I used a bottle of Techron at every OC.
However, I dumped a bottle of Berryman's Chemtool into the Ranger.
The truck now runs the best it ever has in the nine years that I have had it.
2012 Honda Accord LX-P 92K
2008 Ford Mustang Pony Package Convertible 16K
2006 Honda Odyssey EX-L 76K
2003 Ford Ranger 3.0 Supercab 107K

#4431379 - 06/14/17 02:40 PM Re: Best Fuel System Cleaner? [Re: billt460]
3800Series Offline

Registered: 08/02/14
Posts: 1452
Loc: Gulf Coast, MS
Fuel system cleaner's don't do much. They have a purpose and I feel it's mainly intended for vehicles which where not properly maintained.

If your vehicle us running well the cleaner shouldn't make much difference but if it's some teens first car and it's running poorly or has a bad throttle position sensor it can help clean some of the build up caused by it running poorly.

9 times out of 10 if in using a cleaner it's on a car that is hard to start. It works well in this case. I remember when I bought our Regal a few years back. Car took 6-7 tries to start each morning.

After a quick tune up nothing really changed until I dumped a few bottle's of cleaner into the the tank. Since then it's started first try every time for nearly two years.

This is the most noticeable change for me.

#4431490 - 06/14/17 04:43 PM Re: Best Fuel System Cleaner? [Re: billt460]
NHGUY Offline

Registered: 10/09/11
Posts: 5053
Loc: USA
ChemTool is one of the harshest chemical mixes you can buy.That said,I would use it sparingly and only when really needed.That being said I use it and have had some success with it.Seafoam is largely pale oil and isopropyl.I don't know why it supposibly works as well as it does for some people..its not aggressive at all.

#4431516 - 06/14/17 05:00 PM Re: Best Fuel System Cleaner? [Re: billt460]
TexasVaquero Offline

Registered: 05/31/17
Posts: 127
Loc: South Texas Rancho
IAM gonna use Scotty Kilmer's advice on this.( He has a phD in chemistry) and recommend techron if your car is for starters on good condition, if you need to get rid of water in your fuel.

He's said chemtool is very good as well as Gomout.
2014 NISSAN VERSA 5spd M/T- M1 EP 5w30 and M1 EP Filter. 5k OCI.
2011 CHEVY IMPALA 3.5ltrs - M1 HM 5w30 and M1 EP Filter. 3k OCI.

#4431609 - 06/14/17 06:47 PM Re: Best Fuel System Cleaner? [Re: billt460]
The_Captain Offline

Registered: 08/06/12
Posts: 211
Loc: Upstate S.C.
In my opinion any product with a good dose of PEA works well. Redline and Gumout both have PEA.
2017 Jeep Wrangler Unlimited 4x4 with Castrol Full Synthetic (gold bottle) with Fram Ultra oil filter.

#4431638 - 06/14/17 07:08 PM Re: Best Fuel System Cleaner? [Re: billt460]
CharlieBauer Offline

Registered: 03/29/16
Posts: 1179
Loc: CA
Yep, PEA is a proven cleaner and at higher concentrations will perform a one tank clean up.

In lower concentrations, it will clean fuel injectors and in even lower concentrations, it will keep clean as it does in Top Tier fuel.

Costco had the additives in their top tier fuel tested and they have enough concentration to perform gradual cleaning.

If you use the one tank cleaner and notice no difference, that's good news! It means your system is clean.

PEA is a pretty generic additive so I buy whichever out of Techron or Gumout's one tank products is cheapest per gallon treated. But, I almost exclusively use top tier gas, so I only use it every 2 to 3 years.
It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so.

- mistakenly attributed to Mark Twain

#4433068 - 06/16/17 07:52 AM Re: Best Fuel System Cleaner? [Re: The_Captain]
Virtus_Probi Offline

Registered: 06/25/15
Posts: 3970
Loc: New England
Originally Posted By: The_Captain
In my opinion any product with a good dose of PEA works well. Redline and Gumout both have PEA.

The Gumout Regane products have PEA, and I think there is one other high priced Gumout product that also contains it, but it's not in the whole Gumout line.
Same thing with Techron now, there is a lower priced product in their line with little to no PEA.
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter