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Car Forum / Toyota / Toyota Cars / February 2008Fuel injectors?
STP? etc? Any good? Or just crap? > STP? etc? Any good? Or just crap? Use a product that contains the chemical ingredient "toluene". It's a very effective fuel system cleaning agent. Try a product called Berryman's B-12. It has a high percentage of toluene in it and I've had good results. It is available at most mass merchandisers and is available in both 16 oz. liquid, and aerosol. Reasonably priced too. >> STP? etc? Any good? Or just crap? >> [quoted text clipped - 3 lines] > It is available at most mass merchandisers and is available in both 16 oz. > liquid, and aerosol. Reasonably priced too. Toluene? That's also in Marvel Mystery Oil... >>> STP? etc? Any good? Or just crap? >>> [quoted text clipped - 5 lines] > > Toluene? That's also in Marvel Mystery Oil... It's a really good cleaner. We buy it by the 5 gal. pail (about fifty bucks). It will melt varnish off. You can place fuel components (really anything that is gunked up) into the bucket and in a short time remove them and blow with compressed air, spotless. It's used alot in gasoline to boost the octane. > STP? etc? Any good? Or just crap? Fuel injector cleaners? If that is what you are asking about, I'd recommend one of the Chevron products over STP. See http://www.chevron.com/products/prodserv/fuels/additives/pro_gard.shtml . I've had good luck with the Fuel Injector Plus Intake Valve Cleaner. In the past some other suppliers (BG for one) also had Techron in their products, but the last time I looked at the MSDS for BG-44K, it no longer listed Techron as a component. There is nothing special about the STP product and although it might not be "crap" I don't think it offers anything you are not already getting in the cheapest level of unleaded gas you can buy in the US. I would also warn against the too frequent use of any of these fuel system cleaners. Ed > STP? etc? Any good? Or just crap? Ed White's post is right on the money. There are those who say that adding fuel injector cleaner once a month or when they do oil changes has kept them from having fuel injector problems, but I have never added fuel injector cleaner to any of my vehicles and have never had a fuel injector problem. Routine use of fuel injector cleaner or not using it quickly enough can eat hoses and cause problems, which is why I do not recommend routine use. If you do need to add fuel injector cleaner, try Chevron Techron or BG products (only available through some dealers and shops) or use the stuff Toyota dealers sell over the parts counter.  SignatureRay O (correct punctuation to reply) On Aug 13, 10:28 pm, "Ray O" <rokigawaATtristarassociatesDOTcom> wrote: > > STP? etc? Any good? Or just crap? > [quoted text clipped - 12 lines] > Ray O > (correct punctuation to reply) I can safely tell anyone here from experience that overusing fuel injector cleaners is a BAD IDEA. I have a 2002 Corolla and was driving from Medford, OR to Fresno, CA about once a month. I figured surely that injector cleaner couldn't hurt anything, right? Wrong... Due to dealer not being able to figure it out... they replaced an Idle Air Control Valve (didn't appear to idle right due to misfiring..), replaced a catalytic convertor (yep, it did get contaminated...), and about 4 other mechanics couldn't figure it out was an injector. Low and behold, the dealer eventually took out the injectors and gave them to Oregon Fuel Injection... diagnosis? A cracked/dirty injector. Replaced that injector and the car ran GREAT! No problems since. I've heard fuel injector problems are very very hard to diagnose... that true RayO? Either way, I just use middle grade octane and always fill up at Chevron or Shell. No cheap gas here. I've had *no* problems with this philosophy and I am sticking to it. > On Aug 13, 10:28 pm, "Ray O" <rokigawaATtristarassociatesDOTcom> > wrote: [quoted text clipped - 33 lines] > I've heard fuel injector problems are very very hard to diagnose... > that true RayO? Fuel injector problems are not very hard to diagnose if you have the right equipment and know what you are doing. SignatureRay O (correct punctuation to reply) I think you all may find it interesting to look up various MSD (material safety data sheet) for the various fuel injector cleaners. Yo will find that it is all paint thinner/xylene/kerosene/acetone etc http://tinyurl.com/yrxuo That's the MSDS for STP super concentrated. You can look up each CAS to find out what it really i CAS #' 8008-20-6 (kerosene 64742-81-0 (HYDRODESULFURIZED KEROSENE 64742-95-6 (Light aromatic naphtha 91-20-3 (NAPTHALENE I was down at Ace Hardware today and it seems they sell all of this though I'm no chemist so not sure if it is the EXACT stuff but I' imagine so. They had some Naphtha there, kerosene, but didn't se nathalene techron's MSD http://tinyurl.com/6uxm COMPONENTS CAS NUMBER AMOUN Distillates, hydrotreated light 64742-47-8 < 50 %weigh stoddard solvent 8052-41-3 < 35 %weigh Solvent naphtha, light aromatic 64742-95-6 5 - 10 %weigh Benzene, 1,2,4-trimethyl- 95-63-6 1 - 5 %weigh Xylene 1330-20-7 0.1 - 0.5 %weigh 50%ish of techron is Napthol spirit 35%ish of techron is stoddard solvent aka mineral spirit 5-10% is Naphth 1-5% is benzen .1-.5% is xylen Supposedly from what I've discovered on the internet you ca interchange benzene and xylene. I think benzene is a very well know carcinogen. So they may not even use it anymore http://tinyurl.com/2y3bp There Prestone's stuff (80-90% of it is stoddard solvent (minera spirits) 1-5% is xylen Refined Petroleum 8052-41-3 80-90 500 ppm TWA OSHA PE Distillate 100 ppm TWA ACGIH TL Xylene 1330-20-7 1-5 100 ppm TWA OSHA PE 100 ppm TWA ACGIH TL 150 ppm STEL ACGIH TL 1,2,4 TrimEthylbenzene 95-63-6 1-5 None Established OSHA PE 25 ppm TWA ACGIH TL Ethylbenzene 100-41-4 1-5 100 ppm TWA OSHA PE 100 ppm TWA ACGIH TL 125 ppm STEL ACGIH TL Proprietary Additive Mixture 5-15 None Establishe -- larockma |
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