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Fuel and Oil Additives

1246 messages,  Last post on Sep 28, 2009 at 7:37 AM

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What is this discussion about? Fuel System, Engine, Fuel System, Oil, Diesel, Fuel Efficiency (MPG)

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#1 of 1246 Hi everyone.. by swooshman Sep 09, 2001 (3:57 pm)
I didn't see a thread about fuel and oil additives (you know that huge shelf at the wal-mart with like 200 brands claiming to clean and stop leaks). Anyhow, to introduce myself, I have a 1994 Chevrolet Z71 extended cab with the 5.7 liter engine. I am experiencing some hesitation starting off in the 0 to 1000 RPM range and I was just wondering if anyone had any particular experience with some of the fuel injection cleaners like STP and the like.   Anyhow you are all welcome to post any pros and cons that you may have had with all those aftermarket additives.   Keep is rubber side down!!! Swoosh Man Replies to this message: fakesynthetic (Dec 01, 2005 2:28 pm) imidazol97 (Dec 01, 2005 7:56 pm) pittautoman (Feb 10, 2007 6:57 pm)
#3 of 1246 Fuel Cleaners by markbuck Sep 10, 2001 (3:36 pm)
The only one I would use would be the one made by 3M, that plugs into the fuel rail, you disconnect the fuel pump, and the engine runs basically off the bottle for about 20 minutes. One of your local shops probably has the system.... Most of the rest of the OTC stuff is junk. http://www.heffsauto.com/product/3mpromo.htm http://www.thetoolwarehouse.net/shop/product2650.html
#4 of 1246 Based on what, markbuck? by txyank1 Sep 12, 2001 (4:16 am)
#5 of 1246 txyank1 by markbuck Sep 17, 2001 (10:37 am)
Dilution ratio's on the in-tank stuff are so high, that I don't think they do much.   Maybe use some Chevron Techron, but the highly concentrated fuel-rail type 3m stuff undoubtedly works a heck of alot better for removing deposits from injectors and backs of intake valves
#6 of 1246 Do fuel additives help keep an engine clean? by trifivenomad Sep 25, 2001 (7:29 pm)
#7 of 1246 I add Chevron Techron fuel system cleaner... by trifivenomad Jul 12, 2001 (9:46 am)
to my gas tank every 3000 miles, but I'm not sure if it needs to be done so often. Does anyone know if fuel additives really keep intake valves and injectors clean?   Is good quality gas enough?
#8 of 1246 Well -- by mrdetailer Jul 12, 2001 (3:24 pm)
The same additives are already put in gasoline.   The oil companies also say nothing more is needed.   Some of those same companies also sell gasoline additives.   Those pictures of cleaned up engines seem too good to be true.   FTC sued companies for oil additives not living up to representations.   Didn't sue any Gasoline Additive companies. Most made both oil and Gas Additives.   Fuel injection repairs are expensive.   Additives are cheap.   I personally use them. I also do a 3 stage fuel injector cleaner every 15,000 miles. I had a car that needed premium until I got the big treatment. Now it uses regular.   I like them. Replies to this message: gashauler (Mar 31, 2006 10:25 am)
#9 of 1246 by Mr_Shiftright HOST Jul 12, 2001 (4:54 pm)
I'm very dubious about over-the-counter additives you buy at 7-11. Personally, I only trust industrial grade additives that take off skin and paint and cause birds to drop out of trees when you open the top. They aren't easy to find and they are expensive, but they work.   I think most off the shelf additives are harmless and just duplicate (if that) additives already in your fuel.
#10 of 1246 How about racing gasoline? by trifivenomad Jul 13, 2001 (3:49 am)
A local Texaco station sells 110 octane Union 76 racing gasoline. Of course it's for "off-road" use only.   A friend told me that this gasoline gets its high octane rating from nitro-methane. Is that true?   If a couple of gallons of this gasoline happen to get into my Chevy, will it clean the intake valves or will it damage the engine? It costs $3.50 a gallon. It sounds expensive, but it's alot less than $6.00 for a bottle of Techron concentrate, if it works.

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