fuel injector cleaner...

[twitchy]

anyone ever get that service where they hook a can up to your fuel rail and your engine runs off it for half an hour or so, and it cleans everything out?

is it worth getting? Increase in mileage and power noticeable or?

what would you pay for it and can you do it yourself?

93 240 100 miles....

[Bill Roberts]

Twitchy? You only got 100 miles on your engine?

That is what I am reading with your post...

A full fuel system cleaning is of order and preferably not with a new engine. I hope I did not read you wrong with the 100 miles in your post.

If you want peace of mind and a good clean fuel system, chevron has "techron" for 8 dollars a dose that you add to your full tank. Others here do not recommend additives but I can say that techron is good. I would not want to put any contaminants that may loosten up into a new engine.


As far as from fuel pump to rails, you should replace as much of that as you can, including the filter before running a new engine.


I hope this helps.

As far as gas goes, it depends on the engine build. More compression requires a higher octane. High octane fuel burns slower and more complete than low octane. Low octane has a lower flash point and is subject to predetonation ie, pinging. Listen to your engine with the seat of your pants and do gas milage testing with some consistant driving. I personally like to burn amaco super premium but I do have a rather high compression ratio. A F15 fighter jet runs on the equivalent of 77 octane as far as combustablity is concerned.


Look at the faq and the search engine here for more complete discussions of this topic. Their is a lot of info to consider.

[twitchy]

thanks bill

100 miles as in 100 000, i thought it was customary to drop the last 3 zeroes... I have some additives Ive tried.

the product im talking about is like a can you attach it to a valve on your fuel rail and your engine uses whats in the can as opposed to gasonline, and it supposedly does a more thourough job of cleaning the injectors than puttin something in your tank

I couldnt search cause I dont really know what its called, it runs about $50 to have it done up here (canadian)

[radhaz]

Bill, I've been told that techron is supposed to coat the walls of your fuel lines to "smooth" them out allowing fuel to flow easier. That make sense to me, however my question is how long does it take for this "coating" to break down?

I mean think of it like cholesterol and veins sure it lines the veins and smooths them out a bit, but its also constricting the flow. If the techron doesnt break down fast enough then there's a chance it is just going to accumulate?

Now to play devils advocate it's possible that this stuff is so slick that it will not create "layers" because it cannot adhere to itself. Honestly though I use techron fuel every now and again to give me a warm and fuzzy but until I can get some conclusive results I don't think using it consistantly is wise.

This is after all just my opinion and worth a grain of salt in the end. :bow:

[Bill Roberts]

Thanks for your swift reply (too late here, got to bed down, work hard tomorrow)

Get that Techron.

I know of none other that actually works other than that.
Techron and if you have a stock airbox, K&N filter. You will love me for this advice. IF your car is not running absolutly killer, this makes the difference IMHO.


The cool thing about techron is what it does for the backside of your valves and sparkplugs. I had no idea a product could clean like this stuff does. It says on the big bottle to use 1 container per 20 gallons. I did this:


I had a low tank. I poured in the 1/2 bottle of techron and cranked it up. I was at the petrol station, so while running, I startyed putting in the gas. At 1/2 tank, I stopped the pump, poured the rest in and procedded to go up to 13.5 gallons of gas. They don't take kindly to putting gas in a running engine at some shops, here they don't give a phuck. Some copmputers will actually show a check engine light if you run the car without the gas cap firmly sealed. 89's don't have a check engine light per say, so no problem. I then ran the car down the road at 35MPH in second...3700RPM, for 4 miles, down the boulevard. I then romped on it. We like to call it an Itailian tuneup. It certaily makes a difference. I would do it. What do you have to lose? 8 bucks for Techron. Get the big bottle. It certainly did not hurt my engine at all. I started with a new fuel filter, and once I got home and it cooled off, I replaced that filter and could see the crap the techron removed from the lines, in the filteer.

I actually went hard core and flushed it 5 times like this over 5 weeks. Sure worked for me.

Not cheap, worth it.

PS, I have not heard of the technique you were describing actually.


Late and tired, typos, ignore them, no spell check this time....

[Strider]

Nissan owners Manual

"AfterMarket Fuel Additives
Nissan does not recommend the use of any fuel additives (i.e. fuel injector cleaner, octane booster, intake valve deposit removers, ect.) which are sold commercially. Many of these additives are intended for gum, varnish or deposit removal may contain active solvent or similar ingredients that can be harm fuel system and engine."

I'm mixed when it comes to the subject. I've been told not to use fuel additives(Nissan) due to the fact that most of them contain solvents that are to strong for the type of cleaning your looking for and actually start to corrude<sp> the rubber hoses and seals of the fuel injectors. I highly doubt though this can happen after one use, but most likely after repeated uses of it. But hey, what do I know.

Try getting an in car fuel injector cleaning which Radhaz was talking about. What they do is disconnect the line after the fuel filter, remove the fuel pump fuse, then screw in an adapter with a fuel line to a can of cleaner which the car can run off of and then start the car and keep it running for about 15 minutes. thats the only additive my friends trust. Usually runs you up to 45.00 though OR just get your injectors removed and professionally cleaned. or buy some AFTERMARKET ones :D

and thats my .02 cents ;)

gah, i hope i make some sense. If not ignore sleep deprived college student.

[tougebear]

Originally posted by Strider
Nissan owners Manual

"AfterMarket Fuel Additives
Nissan does not recommend the use of any fuel additives (i.e. fuel injector cleaner, octane booster, intake valve deposit removers, ect.) which are sold commercially. Many of these additives are intended for gum, varnish or deposit removal may contain active solvent or similar ingredients that can be harm fuel system and engine."

Funny thing is a local Nissan Dealer/Service station markets their own "after-market" fuel cleaning additve.

I've used Redline Fuel Additive on my old cars (2 turbo MR2's, and an SR'ed S13) every oil change. Never really had any problem with them. But the difference is unnoticable. It may have helped my piece of mind more than the car itself.

Currently, I'm testing a product that basically does it all. I will let everyone know if it actually works or not.

[pinoydrifter]

Hello,
I had a fuel system cleaning done at my local Jiffy Lube. I watched them do all the work on my car because I am really paranoid about anyone touching my car! Anyway I didn't feel any difference but I did it anyway because I like my car well maintained! -late

[jamik_69]

i got it done to a 99 grand am at mr lube didnt notice any improvments but the car only had 50,000km's on it, id get it done though just to keep the injectors clean:)