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-   -   Diesel Purge vs. Injector Cleaners Etc. (http://www.peachparts.com/shopforum/showthread.php?t=262509)

JEBalles 10-03-2009 07:33 PM
Diesel Purge vs. Injector Cleaners Etc.
 
I've been looking to do a diesel purge and I went to great lengths to get the Lubro-Moly Diesel Purge specifically. When I just went to my local auto store, they had all these injector cleaners and diesel additives. Even Lubro-Moly carries an assortment of these cleaners and additives. What's the honking difference? There are so many...

oldsinner111 10-03-2009 07:39 PM
Diesel purge is good for a better cleaning of carbon on injectors,pistons,valves,prechamber,ect..
Other products reduce the need for a purge.Purge is really needed when burning veggie,or wmo/watf.

oldsinner111 10-03-2009 07:59 PM
what about prechambers?Lubro is used by Mercedes.My paper work while car was under warenty Lubro was used.

tangofox007 10-03-2009 08:03 PM
Quote:
Originally Posted by LMN- (Post 2307808)
They are all junk, little more than lantern oil.
People who have actually used Diesel Purge probably have a different opinion. They have seen how dark the return fuel becomes and they have experienced how much better their engines run.

lupin..the..3rd 10-03-2009 08:08 PM
Quote:
Originally Posted by tangofox007 (Post 2307816)
People who have actually used Diesel Purge probably have a different opinion. They have seen how dark the return fuel becomes and they have experienced how much better their engines run.
x2, with the LM DP product, the fuel coming back from the return line is almost BLACK! LM DP really works. But you have to use it properly i.e. run it straight from a separate container. It cannot be mixed into your tank.

JEBalles 10-03-2009 08:23 PM
Quote:
Originally Posted by LMN- (Post 2307808)
They are all junk, little more than lantern oil.

Take the injectors off the engine and get them physically cleaned.
Alright, smahtypants, can you tell me how exactly they clean them when they're out? Mechanically or chemically?

lupin..the..3rd 10-03-2009 09:35 PM
Quote:
Originally Posted by JEBalles (Post 2307829)
Alright, smahtypants, can you tell me how exactly they clean them when they're out? Mechanically or chemically?
Neither. Part of a proper injector rebuild is to disassemble the injector bodies and ultra-sonic clean them.

If you use a wire brush or any other mechanical cleaning method, well, congrats, you've just destroyed your injector nozzles.

awsrock 10-03-2009 10:49 PM
I was disappointed that my diesel purge did not become dirty at all :(
I guess that means I have a clean engine, though. I do use Howes Meaner Cleaner in each tank.
However, the DP did still make a bit of a difference, despite not returning black.

Cr from Texas 10-03-2009 11:25 PM
Quote:
Originally Posted by tangofox007 (Post 2307816)
People who have actually used Diesel Purge probably have a different opinion. They have seen how dark the return fuel becomes and they have experienced how much better their engines run.
Clarify please. I thought the return line returned the fuel that was in excess of what the injector could deliver. Isn't it only cleaning the fuel system on the non combustion side of the injector?

tangofox007 10-04-2009 12:03 AM
Quote:
Originally Posted by LMN- (Post 2307901)

Wow, the fuel turns dark, big shock. They've managed to clean a layer of slime off the inside of the fuel manifold. :rolleyes:
So, you do admit that Diesel Purge has the ability to clean the fuel system. That would seem to contradict your earlier claim that the product is "junk."

Ian White 10-04-2009 02:15 AM
LMN, is that you, Forced?

mike-81-240d 10-04-2009 02:20 AM
Quote:
Originally Posted by Ian White (Post 2307964)
LMN, is that you, Forced?
X2?:D

Brandon_SLC 10-04-2009 02:37 AM
My return line durring my purge was mearely amber, with a few particles of soot here and there. It still made a big difference in how my car ran. I ran 2 cans through, then changed my oil to synthetic.

In the olden days I used injector cleaners, cetane improvers, etc. Engine ran better with them too, but my aging injectors soon returned to normal after a few tanks with no additives.

Had I had resources like this website, Diesel Giant, etc. I doubt I would have ever sold my 83 300SD. My cousin kept his 81 till one of his sons wrecked it in 2004. But he was much wealthier than I, so never flinched at maintenance costs. Because my engine no longer sounded as smooth as it had, I worried about a major repair breaking the bank.

Anyways, after using Lubri-molly purge, I'm a believer. When my mom followed me down to put the car in storage for the winter, about a week ago, she complained that my 240D was too fast! With no visible exhaust. I performed the purge in May and my engine still runs very smooth.

JEBalles 10-04-2009 10:41 AM
Quote:
Originally Posted by Ian White (Post 2307964)
LMN, is that you, Forced?
Yeah it's gotta be, just that manner of posting makes me think it is. Now that he's back, though, I see how much I missed him and his rowdiness.

Anyway, I'm going to do the diesel purge today and report back. We'll see what difference it makes, but I do think I might need new injectors anyway because I have a little bit of nailing that doesn't go away even after warm up. Should I have them rebuilt or just cleaned?

lupin..the..3rd 10-04-2009 10:53 AM
Quote:
Originally Posted by JEBalles (Post 2308049)
I have a little bit of nailing that doesn't go away even after warm up. Should I have them rebuilt or just cleaned?
If they have 100k miles or more on them, they are due for a rebuild.

JEBalles 10-04-2009 11:55 AM
PO's records go back 60,000 miles without injector rebuilds, so I might be due for new ones. Should I get new nozzles, or get mine cleaned and just replace the innards?

toomany MBZ 10-04-2009 01:49 PM
Quote:
Originally Posted by LMN- (Post 2307942)
No, the ability to remove slime means that it has solvent properties. Running type of solvent will do the exact same thing; biodiesel will have a greater effect than DP but at a far cheaper cost.

Removing a layer of slime and removing carbon are two very different things.
Bio fuel is also corrosive to rubber.
http://auto.howstuffworks.com/fuel-efficiency/alternative-fuels/biodiesel4.htm

badgator 10-04-2009 04:15 PM
Cleaning injectors
 
I scored a HF stainless steel ultrasonic cleaner $30? shipped -used Ebay

Bosch factory injector cleaner kit $20 shipped - new Ebay

this kit comes with brass brushes, brass angle cleaners?, drill bits + more :)

I disassemble 1 at a time, come out 99% clean.

PO had a rec for $250 inj cleaning 3 years before.

Diesel911 10-04-2009 04:44 PM
1 Attachment(s)
Quote:
Originally Posted by Brandon_SLC (Post 2307971)
My return line durring my purge was mearely amber, with a few particles of soot here and there. It still made a big difference in how my car ran. I ran 2 cans through, then changed my oil to synthetic.

In the olden days I used injector cleaners, cetane improvers, etc. Engine ran better with them too, but my aging injectors soon returned to normal after a few tanks with no additives.

Had I had resources like this website, Diesel Giant, etc. I doubt I would have ever sold my 83 300SD. My cousin kept his 81 till one of his sons wrecked it in 2004. But he was much wealthier than I, so never flinched at maintenance costs. Because my engine no longer sounded as smooth as it had, I worried about a major repair breaking the bank.

Anyways, after using Lubri-molly purge, I'm a believer. When my mom followed me down to put the car in storage for the winter, about a week ago, she complained that my 240D was too fast! With no visible exhaust. I performed the purge in May and my engine still runs very smooth.
If you are using the stock Bosch Injector Spary Nozzles a regular Purging should help to keep the Central Hole drilled in the pintel cleaned out.

(In the service Manual they show taking apart the Injector and picking out the holes with properly sized Music Wire.)

On the Injectors in my Car and most of the ones I pulled from the Junk Yard the holes #14 and #15 in the Spray Nozzles were entirely plugged up.

t walgamuth 10-04-2009 07:27 PM
I've probably driven my 30 benzes mostly high mileage diesels a million miles and have not yet felt the urge to try diesel purge. I have on occasion replaced a bad injector or had a set rebuilt when rebuilding a motor.

My guess is that its probably not all that effective, but I suppose it probably can't hurt much.

JEBalles 10-04-2009 07:40 PM
Well, it didn't noticably affect performance, but seems like it may have reduced the nailing. I didn't see any smoke or anything while purging, and it came back amber.

tangofox007 10-04-2009 08:34 PM
Quote:
Originally Posted by t walgamuth (Post 2308303)
I've probably driven my 30 benzes mostly high mileage diesels a million miles and have not yet felt the urge to try diesel purge.
It's interesting that you haven't had the urge to try Diesel Purge, but you do feel the urge to share your (apparently baseless) perceptions of its ineffectiveness.

Gene Horr 10-04-2009 10:41 PM
The LM Diesel Purge is hardly "Junk". It will improve the system in certain conditions. It won't magically repair bad injectors but it is helpful in conditions where the injectors are just starting to have problem. In this case my experience is that this product does delay having to remove and refurbish/or bench clean the injectors.

In the long run you'll probably have better dependability by removing the injectors and doing proper maintenance but if money or time is tight IMO you can delay this maintanance by doing a proper Diesel Purge procedure.

charmalu 10-05-2009 10:47 AM
I see LMN quoted here several times, dont`t see any of his postings :confused:

I have used Diesel Purge in the past, don`t remember the results.
I have one can left on the shelf, I was thinking of running it through the engine.

I have almost 25,000 miles on the new engine and injectors, and had thoughts of running a can through every 25,000 miles just to stay on top of things.

Charlie

jkubica 10-05-2009 11:19 AM
Deteriorated Return lines = Black Diesel Purge?
 
Quote:
Originally Posted by lupin..the..3rd (Post 2307819)
x2, with the LM DP product, the fuel coming back from the return line is almost BLACK! LM DP really works. But you have to use it properly i.e. run it straight from a separate container. It cannot be mixed into your tank.
Hi
After changing out my leaking return lines on my 1985 300Td -t, the returning Diesel Purge came back perfectly clear - not black.

Leads me to think that all that black stuff people keep seeing in thier returning Diesel Purge - is really from deteriorated return lines.

For what its worth,
Joseph

390pi 10-05-2009 02:06 PM
FWIW:

I have run Power Service Diesel Kleen for 5k miles. It just recently made the idle noticeably smoother.

When I bought the car 5k miles ago, it had a stuck open thermostat which I'm sure contributed to carbon deposits.

I had the intention of running LM but could not find it locally so I never did.

JEBalles 10-06-2009 07:08 PM
Well, diesel purged, 90-95% less nailing, easier starts. Can't say for smoother idle, and no effect on performance.

t walgamuth 10-06-2009 09:35 PM
Quote:
Originally Posted by tangofox007 (Post 2308336)
It's interesting that you haven't had the urge to try Diesel Purge, but you do feel the urge to share your (apparently baseless) perceptions of its ineffectiveness.
You are free to express yourself too, I believe....I am not trying to stop you.


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