Additive for cleaning fuel injector

Yes...injector cleaner the one snake oil that does actually work.

Ultrasonic cleaning. They can only be tested with dedicated test machinery that measures both the spray pattern and amount discharged in a timed period.

Excellent, I'll give a bottle a go then.

Ahhh ... I was hoping I could poke it around with a paper clip lol (joking)

I'm not convinced. Left an old one soaking in it and it didn't remove the 'varnish'. Whereas proper carb cleaner (and elbow grease) does. Just on the outside obviously.

I think you need a proper cleaning rig to do the job - forcing nasty chemicals through them.

erm, injector cleaner is a chemical, and by adding it to your tank of fuel, you are forcing it through them... as you drive.

right now i'm doing that with my old micra, been acting up lately... bit of stuttering, bogging when accelerating etc,

put some redex injector cleaner in the tank 2 days ago, it's already showing an improvement,

you should see the differance the proffesional injector cleaning rig does to a car... the one i mentioned in the other post about addatives 5 posts below this one, can have a car barely running, and after 30 or so minutes on the machine it'll be running almost like new, obviousely it cant make up for worn out injectors,

place i used to work would deliberately buy old cars that failed the emmisions test at mot time or had brought in because of crap running, he giving them some right old bullshit about a new engine being needed and hence buying it off them for around £100. (depending on how thick he thought the driver was, he'd alter his spiel to include as many made up words as he could just to take the piss, bit like that advert a while back 'i'm not taking advantage of them....it's not my fault most car drivers are too thick to know anything about their engines')

80 quid to call the bloke out with the machine, and a few hours later the car would be on the forecourt all polished up with an engine sounding good, and a 4 figure price tag.

In message , "Dave Plowman (News)" writes

S'usually just isopropyl alcohol last time I read the contents on one.

Agreed, best removed from the car and put in an ultrasonic tank, new caps and O rings if possible, flow tested and spray pattern checked but I have used a Wynns (I think) injector cleaner machine that had a fuel pump and a tank of some yellow goop that the car runs on. Worked well.

In a near homeopathic dilution, though.

As I said there's a big difference between removing injectors to clean them - and probably replacing the pintles - and adding some gunge to your tank.

meh, the gunge has done what i wanted it to for my engine, now running sweet as a nut again,

could have got the same result by taking the injectors out and re-conditioning them, but i think that may have cost me more than £3.50 the bottle of redex stuff cost me, and i still have half a bottle left.

i wont put any other stuff in an engine, but injector cleaner is the one thing i will use as i know it works.....

used some diesel injector cleaner on my motorhomes heater the other month, 3 years of use, sometimes for extended periods when camping on the top of mountians in switzerland resulted in it being pretty coked up,

was taking longer and longer to sustain the flame on start up, and producing smoke till it was fully warmed up,

i ran it on neat injector cleaner till the bottle was empty... and that cleared it out nicely, a good few belches and farts, and a fair bit of soot chucked out the exhaust, and back on red diesel she is running like new again with 15 second start ups (timed after the fuel pump starts, which is about 20 seconds after the glow pins are energised) and not a whiff of smoke,

2L-3L of E85 in 40-60L of petrol will do much the same. About 4% ethanol.

Can be rigged up with a simple timer circuit to pulse the injector and bottle to catch the fuel. Side feed injectors are a bit harder to mount and feed fuel to.

Doesn't necessarily follow though that major dilutions don't work.

I go along with others in this thread. I too have experienced significant improvements after using injector cleaner. Better starting, smoother running engine, along with a noticeable improvement in acceleration etc.

Until I first used it I was also sceptical of the claims made by the makers of injector cleaners. I expected to be dissapointed, so was pleasantly surprised to find a noticeable improvement that I couldn't attribute to anything else.

I have also been told by a tunig guy I know,. that to keep injectors in good condition, it's not a bad idea to use it at regular intervals. Every few thousand miles etc. Mike.

Yesterday I shoved a bottle of Wynns diesel injector cleaner in the Mondeo. Within 30 miles, the difference was noticable as it seemed to pull harder and without some flatspots I'd started to notice.

How much washing-up liquid do you use in a bowl of water?

Have you ever tried dipping an old injector in the correct mixture of petrol and additive and see what happens?

I have...

Do you wash your dishes in cold water just by dipping them in?

Then I'd suggest you use washing up liquid to clean your injectors.

I was (obviously) using it as an example. Horses for courses, yes?

If you're happy that injector cleaner as part of a fuel supply works - fine. I've proved to myself it doesn't.

I've had to use injectot cleaner to get a car through its emision test, which it did successfully (the car is marginally less smoky when I floor it from standstill, too) and subsequent use ahs prevented a subsequent failure, but I haven't in all honesty seen any performance improvement, so I agree there.

I was only referring to petrol cars as earlier posts stated.