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Unread 07-04-2010, 12:20 PM   #1
AnonymousCoward
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Stupid Question # 2 -- Fuel Injector Cleaner

Is fuel injector cleaner worth its cost?
Will it do more harm than good?
Does it replace the need for a $100+ professional cleaning?
How often should it be used?

It's not a question I see often though I have seen it come up in other threads. We're confronted with it in every auto parts sales-event paper so I thought it would be worth bringing up. I'm sure there's more than one new TJ owner sorting out his maintenance schedule that has wondered if this is a useless shiny bauble or a worthwhile purchase.

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Unread 07-04-2010, 12:29 PM   #2
Curly5759
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Run a quality fuel like Chevron with Techron, and you don't need an injector cleaner.
I have access to a Motorvac injector cleaner, and I have used it on my own vehicles, as well as others. I have yet to see it make a difference, despite the claims of the manufacturer.

I run Chevron fuel almost exclusively in my cars, and have no EFI related problems. Chevron because they are EVERYWHERE in this town, but any national oil company brand will do.
Curly
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Unread 07-04-2010, 01:11 PM   #3
TheBoogieman
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You don't need it unless you're using the spray stuff to clean the IAC.
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Unread 07-04-2010, 01:17 PM   #4
Jerry Bransford
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Quote:
Originally Posted by AnonymousCoward View Post
Is fuel injector cleaner worth its cost?
No, all modern gasolines now contain sufficent fuel injector cleaning additives. That did not used to be the case which caused clogged fuel injectors when fuel injector cleaning additives sales surged. But old habits die hard so not many know they no longer need to add more fuel injector cleaner additives. Years ago, I used to have a whole bunch of Jeep dealerships as customers so I used to BS with the mechanics when I had a chance. I asked them a few times if any had ever seen a truly clogged fuel injector and only the old-fart mechanics had but they all pretty well said they hadn't seen one in many years. None of the younger mechanics ever had.
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