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Old 01-13-2013, 09:25 AM   #1
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fuel injector cleaner...

Are those fuel injector, intake valve and carburetor cleaners you put in your gas tank worth it? Do they even work? Some dude at auto zone tried to sell me some

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Old 01-13-2013, 09:38 AM   #2
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not really needed unless you do have some fuel related issues from dirty injectors. I use it maybe 1-2x per yr as preventive on my vehicles.

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Old 01-13-2013, 09:38 AM   #3
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In 28 years of running EFI engines, I've never had an injector problem. I add Techron occasionally to my Jeep, and burn Chevron regular. I don't know if it helps, but it doesn't seem to hurt anything. Good luck.
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Old 01-13-2013, 09:53 AM   #4
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I decided to give it a try. Thanks!
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Old 01-13-2013, 09:56 AM   #5
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9/10 its useless, unless your jeep is acting up it wont clean your injectors or burn the carbon from your valves, or give you better mileage. I had a friend who did undergraduate research on fuel cleaners, obtain boosters and other fuel additives, and they did nothing to help anything unless there was an obvious problem. in fact most additives hurt fuel economy in most of his test cars. the only one that did what it said was seafoam. but it only did anything when we purposely gummed up the valves, and injectors. his conclusion was, most fuel additives will do nothing noticeable most of the time.
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Old 01-13-2013, 10:30 AM   #6
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Quote:
Originally Posted by coolbreeze
In 28 years of running EFI engines, I've never had an injector problem. I add Techron occasionally to my Jeep, and burn Chevron regular. I don't know if it helps, but it doesn't seem to hurt anything. Good luck.
X2,on Techron
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Old 01-13-2013, 11:17 AM   #7
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The federal EPA requires all gasolines sold in the US have adequate amounts of cleaners & detergents to keep the fuel system & injectors clean. That didn't used to be the case when fuel injection first started hitting the streets but it has been since around 1986. VERY rarely is additional injector cleaner ever necessary.

When I used to work with 15-20 new Jeep & truck dealerships here in the San Diego area, I would BS with the mechanics. I asked them if they had ever seen a truly dirty fuel injector that actually needed cleaning. The older mechanics said it had been years and the newer mechanics never had. They agreed that fuel injection system cleaning services pushed by car dealerships are rarely needed, they're just used as a money maker since they are about 90% profit for them.

Save your $$$ when the auto parts store guys try to push that stuff off on you... heck they think it's a good idea, they just don't know the truth since most are barely out of high school.
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Old 01-13-2013, 11:20 AM   #8
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Thanks again guys
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Old 01-13-2013, 11:28 AM   #9
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I agree with most everything that is stated about fuel injector cleaners. The caveat is that you need to watch where you buy gasoline. Twice now I have purchased gas for my 09 Liberty in remote mountain locations and haved ended up with water in the tank, causing intermittent missing. There are cleaners that will also help with this issue. For you guys that go deep into Mexico you should be adding a cleaner evertime you fill in Mexico.
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Old 01-13-2013, 11:42 AM   #10
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Water in the tank is not the same as having a dirty injector and a cleaner is not the fix for that. For water in the tank, you need to add a water dispersant like Dri-Gas which is primarily ethanol based, to allow the water to mix in and pass harmlessly through the engine. Fuel injector cleaning additives, even the good stuff like Techron, won't help when water is in the gas.
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Old 01-13-2013, 11:47 AM   #11
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I use heet in the winter, about a bottle a month to keep the water out. but most of the winter here it stays below 30 all day.
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Old 01-13-2013, 11:55 AM   #12
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I took it Liberty to the dealer and they said they put in a cleaner and water treatment in it. They were concerned that water in underground gas tanks accumulates at bottom of the tank and felt the fuel could have been contaminated with other stuff. The miss stopped that was al I cared about.
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Old 01-13-2013, 01:54 PM   #13
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Funny story.

Autozone guy try's to push this Lucas stuff on me. I declined but he continued to ramble on how good it works and the best stuff on the market ... Bla bla bla.

2 days later I stop in the same Autozone.
There's no Lucas so I am safe .... Not quite . STP is in its place.

The same guy try's to sell the STP now and again rambles on how good it works and the best stuff on the market .... Bla bla bla.

Dude ... I was just in here 2 days ago and the Lucas was the best stuff
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Old 01-13-2013, 02:08 PM   #14
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Funny story.
Dude ... I was just in here 2 days ago and the Lucas was the best stuff
Actually, Lucas is good stuff. It's so good you don't want to use it to break in new gears.
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Old 01-13-2013, 02:11 PM   #15
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Actually, Lucas is good stuff. It's so good you don't want to use it to break in new gears.
but Lucas isn't a fuel additive. their gear oil is great. thats one of the first things I do when I get a new to me vehicle, change all the fluids, put Lucas in all the gear cases.
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Old 01-13-2013, 02:14 PM   #16
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Seafoam?
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Old 01-13-2013, 02:15 PM   #17
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I need to change all my gear oil. In both diffs and trans. Whats good gear oil and does synthetic and regular matter?i have a 97 5 speed
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Old 01-13-2013, 02:19 PM   #18
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I need to change all my gear oil. In both diffs and trans. Whats good gear oil and does synthetic and regular matter?i have a 97 5 speed
I run valvoline synthetic when it gets cold, but up here cold is the lows -10 and under, and the highs 30 or under, I change twice a year on mine. overkill probably but ive never had a problem with diffs.
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Old 01-13-2013, 02:22 PM   #19
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I need to change all my gear oil. In both diffs and trans. Whats good gear oil and does synthetic and regular matter?i have a 97 5 speed
I don't have an AX15 So I can't help ya. But I don't use synthetic in my jeep diffs. Just good ol Lucas 80W-90.
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Old 01-13-2013, 02:26 PM   #20
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I run valvoline synthetic when it gets cold,
I almost wished I had the thinner synthetic yesterday at 5 degrees. I just don't want the thinner oil working past the seals.
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Old 01-13-2013, 03:01 PM   #21
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The only thing that I run injector cleaner/lubricant is for our 04 ford 6.0. I never understand why people use heat or other similar products. Regular E10 already has enough alcohol for water separation.
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Old 01-13-2013, 03:03 PM   #22
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The only thing that I run injector cleaner/lubricant is for our 04 ford 6.0. I never understand why people use heat or other similar products. Regular E10 already has enough alcohol for water separation.
because some of us don't have e10 available.
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Old 01-13-2013, 04:00 PM   #23
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but Lucas isn't a fuel additive. their gear oil is great. thats one of the first things I do when I get a new to me vehicle, change all the fluids, put Lucas in all the gear cases.
"Lucas" can be a lot of things. More correctly, it's a company, not a product. Several of Lucas Oil's products are fuel additives.

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Regular E10 already has enough alcohol for water separation.
The objective is to avoid water separation, not promote it.
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Old 01-13-2013, 04:37 PM   #24
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I used lucas fuel cleaner and no difference but ive heard there gear oils is great. I was gonna use it unless anyone can recommend better
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Old 01-13-2013, 04:48 PM   #25
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All major brand GL-5 gear lubes from manufacturers like Torco, Valvoline, Castrol, Mobil, etc. are superb. Lucas gear lube is very good too but it is no miracle product like their marketing department would have us believe. And to get right down to it, it has been learned (surprisingly) that our ring & pinion gears actually run cooler and last longer in hardcore use when lubed with a conventional gear lube than with a synthetic gear lube. The figured out that synthetic gear lube doesn't 'sink' (extract) the heat out of the gears as well as a conventional gear lube does. Really. Which is why some hardcore axle manufacturers like Currie modified their instructions to users to require the use of a conventional gear lube. They specifically warn against the use of a synthetic gear lube in their axles. The use of a synthetic gear lube like from Lucas will in fact void their warranty. True, it's on their website, not a rumor. I'm just saying this because synthetic lube is not the perfect or best lubricant for every application.
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Old 01-13-2013, 05:07 PM   #26
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Thanks guys!
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Old 01-13-2013, 05:14 PM   #27
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You can spend anywhere from $10 to $30 a quart for GL5. I'm guessing the diffs don't know the difference. Have fun.

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