Wynns diesel injector cleaner full test.

[Huskyxantia]

This is worth a watch i now use this in my picasso it makes a real difference. Its great how this chap goes out of his way to fully show how this stuff works.

Diesel engines only

[white exec]

Mmm...

So he concludes he's found around a 6% reduction in the volume of fuel being spilled back from the injectors, and has assumed from that this extra amount of fuel has been successfully injected, and that therefore the injectors have been successfully cleaned.

That's quite a jump in assumptions, and it could indeed be the case, but it wasn't in itself tested (i.e. measured).

One thing he doesn't acknowledge is that the cleaning action would also likely have had an effect on the injection pump, and IF (if) the volume (or pressure) being pumped were for some reason to have changed, then the leakback figure might well change too.

So, I found his measurements and analysis impressively detailed, but his overall assumption about how the system might respond to a clean a bit simplistic.

Now — and I've used this type of cleaner for just over 25 years now (Wynn's, Miller's, Pluri Metal 3CV - all chemically apparently the same) — I do agree that these cleaner-cetane improvers do actually work, producing (with standard grade, leading brand, good-quality fuel) quieter and smoother running, more low-down torque, and cleaner (less smoky) exhaust. This on the basis of two NA XUD9's, the XM's DK5ATE TD, and a RAV4 D4D TD . . . all responded similarly to using the stuff at 1:1000.

So, I agree that these products work. Some others on the market could be questionable; some have been found to contain little more than standard diesel. Contents can be checked by looking up their MSDS sheets; if unobtainable, draw your own conclusions.

It's just his system assumptions that I find somewhat sketchy, in trying to account for a very small change in one aspect of it - spillback.

[saskak]

I should have registered to the forum a while ago. I am the creator of these videos, i.e. more molecules. I go with saskak in the forums.

I completely agree with the @white exec's comments. In all fairness, I used the easiest way to test this, the leak-off test, although it is rather difficult to test cleaning of the injectors using anything else unless I take them out, which is way to much to do for a simple video. It is an approximation, but if there is something else I would try it.
Yes, I should have recorded the high pressure pump before/after, but this never occurred to me to do. Next test is definitely having the high pressure pump values recorded, so it removes another factor. I did record these with my second experiment with Wynn's and there was no effect on the pressure from the pump, but did not put it in the video, maybe I should have. Youtube videos are a bit funny, the more details you put in the less people watch and youtube does not recommend them, so I remove a lot of stuff from these videos to make them shorter. So, in other words, the potential cleaning of the pump was not the actual effect, but then again my second test with the Wynn's did not actually result in any further improvement.
I think my next test will be Liqui Molly. I sincerely hope this makes a difference, otherwise one of my injectors is going.

[Huskyxantia]

Let us know about the liquid moly test , be well worth a look at your video

[saskak]

Let us know about the liquid moly test , be well worth a look at your video

Yes, certainly. I have already investigated the connections, as one has to bypass the fuel filter. I read somewhere that the Liqui Moly ruins the fuel filter.

[Huskyxantia]

Yes bypass the filter ,definitely, an old car i had was flood damaged but it did run after the injectors were taken out and all the water pumped out the engine, i used wynns for 2 months the car ran perfect , till all the front end suspension went still my the old picasso .

[Huskyxantia]

Yes bypass the filter ,definitely, an old car i had was flood damaged but it did run after the injectors were taken out and all the water pumped out the engine, i used wynns for 2 months the car ran perfect , till all the front end suspension went still miss my the old picasso .