Diesel Purge vs. Injector Cleaners Etc. - Page 2 - PeachParts Mercedes-Benz Forum

JEBalles · #16 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 · #17 10-04-2009, 01:49 PM

Quote:

Originally Posted by LMN-

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 · #18 10-04-2009, 04:15 PM

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 · #19 10-04-2009, 04:44 PM

Quote:

Originally Posted by Brandon_SLC

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 · #20 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 · #21 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 · #22 10-04-2009, 08:34 PM

Quote:

Originally Posted by t walgamuth

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 · #23 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 · #24 10-05-2009, 10:47 AM

I see LMN quoted here several times, dont`t see any of his postings

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 · #25 10-05-2009, 11:19 AM

Quote:

Originally Posted by lupin..the..3rd

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 · #26 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 · #27 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 · #28 10-06-2009, 09:35 PM

Quote:

Originally Posted by tangofox007

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.