BA
Pro
Posts: 1592
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posted March 26, 2006 10:54 AM
 Edited By: BA on 26 Mar 2006 11:00
OT: Fuel System /Fuel Injector cleaners
I was at the ol' Pep Boys today, picking up some fuel system cleaner for the CAR and it just boggles my mind at all of the options out there.
I was hoping someone here could put some science or facts or tests to separate out the BS in this product line!!
There are a few brands that I want to trust like Gumout Valvoline, B-12 Chemtool, Chevron, etc. I'm not as sure about STP or Lucas or some others.
Also, what the heck is the difference between a "fuel system" cleaner and a "fuel injector" cleaner?!?!
  
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Marcos Peguero
Zone Head
Posts: 568
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posted March 26, 2006 10:58 AM
In Dominican Republic, we just take the inyectors out and pay 50 USD and they change the microfilters, clean them and give you a full evaluation of them.
I do that every 15,000 miles.
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Marcos Peguero
Zone Head
Posts: 568
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posted March 26, 2006 11:00 AM
I use Bardall Octane booster on all of my bikes and cars.
the zx12r uses a fitch fuel catalist 2.
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canadamaxxer
Pro
Posts: 1090
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posted March 26, 2006 12:40 PM
What I was told, when we had a Snap On Tech guy come into the shop I was working at, to demonstrate the Motorvac system (A stand alone injector cleaner/ combustion chamber cleaner), was that any cleaner that is poured into the tank has done all the cleaning it will do by the time it leaves the fuel tank. This is because (as it was explained to me) the fuel is so full of impurities that the fuel tank is a virtual sesspool of water, old gas, dirt, random hydrocarbons, etc. I have seen how bad fuel tanks can be (literally muddy on the bottom), and can understand how any detergents get depleted by the effort of trying to clean any gunk in the tank.
If you really want to clean the injectors, you will at the very least have to have a shop run some chemicals through your fuel system under pressure, and run the vehicle to work the chemicals through the injectors.
What Marcos has suggested (to remove the injectors and have them ultrasonically cleaned) will work too, but is often not needed. I have made many vehicles (that came in running like shit) run infinitely better by running injector cleaner through the fuel rail, and cleaning the injectors through that method. I would start with flushing the injectors and if you are still not happy THEN invest in having the injevtors removed, cleaned, and reinstalled....
One other thing: if you have an accessible fuel filter, replace it. When I do fuel filters, I always blow through them with my mouth to see how plugged they are. A partially plugged fuel filter can cause running problems, high fuel consumption, AND is often a symptom of a larger issue (shit in the tank). We typically are doing fuel filters on GM vehicles every 50-60,000 km's here. I have lived in other places where we changed them at 15-25,000 km's because the gas was so shitty.
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted March 26, 2006 03:19 PM
Edited By: Y2KZX12R on 26 Mar 2006 15:20
An intank or inline fuel catalyist will minimize random hydrocarbons. They cause all sorts of fouling problems. Its a time thing with injectors. They use a catalyist when refining gas and also when "polishing" the gasoline for distribution. A catalyizer in your tank basically make your injectors think they have sprayed alot less fuel over time. It wont stop injector fouling but I believe it delays the effects of fouling.
It will reduce exhaust emisions because more of the broken and oddball chains that have developed during shipping will be burned because thier lengths have been modified.
Like any chemical reaction contact time is also a factor. And if you burn a tank of fuel in a few hours it will burn dirtyier than fuel that has sat in your tank with a catalyizer for a week.
So contact time is important as well as the quality and state of the fuel when you buy it.
I've been using the fitch sence 1998 in my bikes.
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted March 27, 2006 06:07 PM
Hey Jim, you get the Fitch catalyst from Nora???
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Jason Miller StreetBike Seminars
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted March 28, 2006 05:28 AM
I bought mine from Fitch at the top of Rt. 7 in CT. It was almost 10 years ago so I cant recall who I talked to.
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Y2KZX12R
CompetitionCNC.com
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