What diesel injector cleaner ?

[Zebster]

Originally Posted by luggsey

Just my 2p worth about injector cleaner, I used it on my D5 by topping up the fuel filter cup before re fitting, it let's a small amount of neat cleaner into the injectors without the closed loop method which AFAIK hasn't been easily done?
It didn't make noticeable difference to the D5.
I also used it on my Honda CRV diesel, now this had bad knock at tick over which was completely cured with injector cleaner!
Note of caution, I added the remains of the injector cleaner to my Honda fuel tank and it promptly threw an engine code when the fuel filter blocked a bit with crap from the tank. Expensive filter on the Honda!
I didn't have so much left from the Volvo job as the fuel filter cover is pretty big and possibly more fuel in the tank to dilute the left over so I didn't have the same problems.
I used liqui moly after hearing good things about it on here.
Their engine cleaner definitely works, made my tappets quieten dramatically!

So a diesel engine will run when fuelled with practically neat cleaner? I'd be worried about a possible lack of lubrication causing excess wear in the high pressure pump.

[davebb]

Originally Posted by Zebster

So a diesel engine will run when fuelled with practically neat cleaner? I'd be worried about a possible lack of lubrication causing excess wear in the high pressure pump.

The liqui moly is made so you can run the engine on it neat with NO problem ,
Dave

[AndyV7o]

Additives are more lubricating than diesel.

[Zebster]

Originally Posted by AndyV7o

Additives are more lubricating than diesel.

All additives?

[AndyV7o]

Well, never seen one which doesn't claim to add extra lubricity to the fuel. They always claim that because diesel isnt a great lubricator and doesnt have enough sulphur anymore, that you NEED to use their additive in order that fuel pumps and injectors dont die a horrific painful death of the highest order, or words to that effect
Some truth in there, but somewhat over-exaggerated

[V70Zig]

As an additive....anyone tried mineral 2 stroke ?
Worked a treat on my P1 and improved the mpg, still adding it to my P3, although no mpg gain

[petey]

To achieve the emissions that modern regulations require, nozzle opening tolerances are a couple of microns and that's it. Obviously probing the nozzle with a bit of wire if going to kybosh the spray pattern, but in reality, you don't have to have a lot of build up to bugger the spray pattern either.

[Zebster]

Originally Posted by petey

To achieve the emissions that modern regulations require, nozzle opening tolerances are a couple of microns and that's it. Obviously probing the nozzle with a bit of wire if going to kybosh the spray pattern, but in reality, you don't have to have a lot of build up to bugger the spray pattern either.

Surely the injectors are designed to take that into account?

[Zebster]

Originally Posted by V70Zig

As an additive....anyone tried mineral 2 stroke ?
Worked a treat on my P1 and improved the mpg, still adding it to my P3, although no mpg gain

Causes a damaging build-up of zinc on the injector nozzles, apparently.
http://www.fuelexpert.co.za/2-stroke...ical-study.php

[Willow place]

Thanks for all the feedback, the temperature every day is in the high 40s to low 50s (Full Sun) the testing station is about half an hour away on a motorway so it should be a hot engine by then !!