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#3385803 - 05/31/14 07:27 PM Fuel injector cleaner is damaging??
lawman1909 Offline


Registered: 03/20/14
Posts: 406
Loc: USA
Hey guys, so my chevy cruze is starting to feel slower and I was told it may be my fuel injectors. I then said I would just get fuel injector cleaner and dump a bottle in my tank, and immediately the counter clerk said no, those are bad and can blow the seals and hurt my injectors! Is this true? Or am I safe to try it out and will it help?
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#3385807 - 05/31/14 07:36 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
Eddie Offline


Registered: 12/07/03
Posts: 6762
Loc: Florida, Cape Coral
I have used TECHRON SYSTEM CLEANER for 20 years and never a problem. Sometimes self appointed experts give bad advice. Ed
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#3385815 - 05/31/14 07:45 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
dave1251 Offline


Registered: 07/15/05
Posts: 7231
Loc: Maricopa, AZ
Depends on what type of fuel injector cleaner is used. But the PEA cleaners you can buy off the shelf are good and relatively safe.
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#3385820 - 05/31/14 07:56 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
fdcg27 Offline


Registered: 09/25/09
Posts: 9416
Loc: OH
No name-brand fuel system cleaner is going to hurt your car in any way.
Techron, Gumout, Valvoline, 3M and Red Line are all brands that contain PEA, the stuff that cleans without leaving any residue and none of these will do any harm.
It's possible that some solvent based products might cause problems, but many members have used solvents like Kreen and Seafoam in their fuel with only good results.
There's also MMO, which may work and seems to cause no harm for those here who've used it.
I'd use any PEA based fuel systmem cleaner without hesiation.
I'd have to have real problems before I considered a solvent based one.
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#3385831 - 05/31/14 08:07 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
sciphi Offline


Registered: 03/24/07
Posts: 8516
Loc: Upstate NY
If it's a 1LT or above with the 1.4 turbo engine, fuel injector cleaner won't help a whole lot with what you're experiencing. The weather is warmer, and warmer air means more predetonation, especially with the turbo. The only way to make it feel as quick as it does during cold weather is to run slightly higher octane fuel. 89 octane will do the trick for the summer, and once the daily temperatures go down below 60*F or so, 87 octane will be fine again.

Try a few tanks of 89 octane, and see if that helps.
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#3385845 - 05/31/14 08:25 PM Re: Fuel injector cleaner is damaging?? [Re: sciphi]
lawman1909 Offline


Registered: 03/20/14
Posts: 406
Loc: USA
Thanks. I actually have the 1.8L engine. I will try gumout and see how it does.
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FRAM Ultra 7317

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#3385871 - 05/31/14 09:11 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
Mud Offline


Registered: 10/06/04
Posts: 670
Loc: Texas
Have you changed the air filter and cleaned the MAF sensor if equipped?
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#3385913 - 05/31/14 10:18 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
Miller88 Online   content


Registered: 04/09/08
Posts: 6806
Loc: Onondaga County
Cleaning MAF always makes a car feel better after a few years!
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#3385930 - 05/31/14 10:44 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
901Memphis Online   content


Registered: 08/14/10
Posts: 6070
Loc: Northern Kentucky
If you get Gumout make sure you get Regane high mileage or all in one. I don't believe that the lower tier Gumout such as the gas treatment or fuel injector cleaner ones have nearly as much pea in them. Gumout has about 8 flavors of fuel additives on most shelfs.
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#3385958 - 05/31/14 11:29 PM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
Kuato Offline


Registered: 10/23/05
Posts: 3139
Loc: Northeastern MT
Listen to BITOG.

Don't listen to "counter clerk".
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#3386087 - 06/01/14 07:29 AM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
Trav Offline


Registered: 11/20/06
Posts: 9987
Loc: MA, Mittelfranken.de
Originally Posted By: lawman1909
Hey guys, so my chevy cruze is starting to feel slower and I was told it may be my fuel injectors. I then said I would just get fuel injector cleaner and dump a bottle in my tank, and immediately the counter clerk said no, those are bad and can blow the seals and hurt my injectors! Is this true? Or am I safe to try it out and will it help?

No commercially available brand name product available today will bother the injectors or seals.
A long time ago something like Nitro 9 may have caused some corrosion issues inside the early injectors.
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#3386198 - 06/01/14 10:59 AM Re: Fuel injector cleaner is damaging?? [Re: lawman1909]
sciphi Offline


Registered: 03/24/07
Posts: 8516
Loc: Upstate NY
Originally Posted By: lawman1909
Thanks. I actually have the 1.8L engine. I will try gumout and see how it does.


The summer predetonation sluggishness won't affect your 1.8. Like others have said, try Gumout Regane or Chevron Techron Concentrate.

Also, I've noticed that my car's computer adapts to my driving style. If the driving has been a lot of put-putting around, it'll drive like it when I want to get on it. A good Italian tuneup to reset the computer will help also.
_________________________
2009 Honda Fit Sport
2012 Chevrolet Cruze Eco

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#3386378 - 06/01/14 04:01 PM Re: Fuel injector cleaner is damaging?? [Re: sciphi]
dailydriver Offline


Registered: 03/14/06
Posts: 7071
Loc: Bucks County, Pa.
Originally Posted By: sciphi
Originally Posted By: lawman1909
Thanks. I actually have the 1.8L engine. I will try gumout and see how it does.


The summer predetonation sluggishness won't affect your 1.8. Like others have said, try Gumout Regane or Chevron Techron Concentrate.

Also, I've noticed that my car's computer adapts to my driving style. If the driving has been a lot of put-putting around, it'll drive like it when I want to get on it. A good Italian tuneup to reset the computer will help also.


Are the 1.8s also direct injected, or just the 1.4 turbos??
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#3386387 - 06/01/14 04:18 PM Re: Fuel injector cleaner is damaging?? [Re: dailydriver]
sciphi Offline


Registered: 03/24/07
Posts: 8516
Loc: Upstate NY
Originally Posted By: dailydriver
Originally Posted By: sciphi
Originally Posted By: lawman1909
Thanks. I actually have the 1.8L engine. I will try gumout and see how it does.


The summer predetonation sluggishness won't affect your 1.8. Like others have said, try Gumout Regane or Chevron Techron Concentrate.

Also, I've noticed that my car's computer adapts to my driving style. If the driving has been a lot of put-putting around, it'll drive like it when I want to get on it. A good Italian tuneup to reset the computer will help also.


Are the 1.8s also direct injected, or just the 1.4 turbos??


Neither. Both are port-injected. They were designed with DI in mind, but it wasn't implemented due to getting good fuel efficiency without it and the cost of implementing DI just for the US market on these global engines. Also, I think a engineer married a bean counter somewhere, and they decided to KISS! Fine by me, as it sidesteps all the potential DI problems and still returns great fuel economy.
_________________________
2009 Honda Fit Sport
2012 Chevrolet Cruze Eco

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#3386435 - 06/01/14 05:11 PM Re: Fuel injector cleaner is damaging?? [Re: sciphi]
dailydriver Offline


Registered: 03/14/06
Posts: 7071
Loc: Bucks County, Pa.
Originally Posted By: sciphi
Originally Posted By: dailydriver
Originally Posted By: sciphi
Originally Posted By: lawman1909
Thanks. I actually have the 1.8L engine. I will try gumout and see how it does.


The summer predetonation sluggishness won't affect your 1.8. Like others have said, try Gumout Regane or Chevron Techron Concentrate.

Also, I've noticed that my car's computer adapts to my driving style. If the driving has been a lot of put-putting around, it'll drive like it when I want to get on it. A good Italian tuneup to reset the computer will help also.


Are the 1.8s also direct injected, or just the 1.4 turbos??


Neither. Both are port-injected. They were designed with DI in mind, but it wasn't implemented due to getting good fuel efficiency without it and the cost of implementing DI just for the US market on these global engines. Also, I think a engineer married a bean counter somewhere, and they decided to KISS! Fine by me, as it sidesteps all the potential DI problems and still returns great fuel economy.


Cool, somehow I thought the 1.4 Ecotecs were DI.

Despite the problems it would incur, I wonder if the performance/power levels would have been higher with DI in the Ecotecs? shrug
_________________________
2000 Z28 1SC 6 speed 175K miles
Red Line 0W-40/Sustina 0W-20 (20/80 mix)
Fram Ultra filter
Synpower 75W-140/4oz. XL-3
Red Line D4 in the T56

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