I used it a few times when I had my diesle (plastic tank method). I did notice quite a bit of improvment on acceleration and engine response, but seemed to be right back to the way it was prior after about a week.

__________________
1989 300E 144K

Id did a great job on my 300SD with the 617 in it. I would do a plastic bottle purge about 2x a year and the amount of black in the bottle and the smoke was amazing.

I did it once or twice on the SDL with the 603 and the stuff never changed color. I am thinking that is because I run B2 in this car.

The 300SD would run quieter and with a bit more pep after a treatment.

__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad

I ran a few tanks of B-50 or higher which did clean out my fuel system. I know because after 120 miles of driving I had to change my pre-filter. I should mention that my car sat for several years hardly getting driven at all - so I know it must have been pretty cruddy.

I was still having nailing when cold, and with our cold winters around here the nailing was pretty bad on cold days. I followed the DP in a clear bottle method.

The return was not black, but a dark amber. There was noticeable fine debris floating in the returning DP. My engine got smoother and quieter after only 30-45 seconds, then continued to improve for the next few minutes.

After completing the process I drove the car. First thing I did was drive up the steep hill I live on. There was a noticeable gain in torque. By the time I got to the first turn, I was going almost 23mph! Normally I can't hit 20 on the same run. (18 or 19 more like it) The engine was very smooth and quiet. There was no visible soot coming from my tailpipe. (Before the purge there was a bit of black soot when climbing that hill.)

I've driven about 1200 miles since I did the purge last year and my engine still runs much smoother and quieter. I stored the car over winter last year. I'm still amazed at how smooth and "powerful" my engine is. I hit 85mph on my way home, as my mother followed me in my Camry. Besides being amazingly peppy for a 65 hp car, there was no visible exhaust either.

So I say it's a good product!

__________________
1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex.
1991 300D 2.5 - Smokes like it's on Crack!

Anything over B20 may degrade 25+ year old rubber fuel lines and cause a leak. But if you have upgraded to biodiesel compatible fuel lines run B100. It is the best solvent to clean out your entire fuel system from tank to injectors. Remember to carry extra fuel filters.

__________________
1984 Mercedes Euro 300D NA
1997 Ford F-350 Powerstroke Turbo Diesel

Has this occurred to you?

I have run B100 in my SD and SDL with only the return lines starting to seep over the course of years.



Again, there is no miracle in a bottle/tank that will take the place of new nozzles.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

I have done many diesel purges over the years on all my mercs...
I was always anticipating a difference....Never did.
So I'm not so convinced anymore that it does what it says it does!
Only my opinion.
Cheers
Big Dan

__________________
Cheers
Big Dan MEng

Visit my Blog..
http://allformercedesbenz.blogspot.com/

www.benzguy.piczo.com



If at first you don't succeed,
Skydiving is not for you.

ARTIFICIAL INTELLIGENCE IS NO
MATCH FOR NATURAL STUPIDITY.

If anything can go wrong,fix it!
The hell with Murphy!!
I never think of the future.It comes soon enough.

Yes in both my vehicles. My 300D developed the common return line leaks but so did the small hose connecting the tank to the steel supply line. That hose leaked so bad it spotted my driveway. My truck developed a return line leak too. So now both my vehicles have J30R9 fuel injection hose which is B100 compatible for all the fuel lines except the 300D has Viton return lines. I run B100 during the summer.

__________________
1984 Mercedes Euro 300D NA
1997 Ford F-350 Powerstroke Turbo Diesel

The other cat said run a tank. One tank will not cause harm.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Thats an old myth. Please stop perpetuating it.

If it causes a leak its only because it cleared out the crud that was plugging the cracks/pores. Rubber fuel lines shouldn't even make it to 25 years before being replaced as part of normal maintenance.

How about some one with a poor running motor, pulling a couple of their injectors (say 1 & 3) testing the spray pattern & taking a pic of it, then taking them to pieces, taking pics of the insides, putting them back together without a clean,replace them onto the car.
Then do a purge, pull all the injectors & do the same.
We can compare the pics & see for our self.

I am very skeptical of any one who has 3 posts, been on here a few days & has no info about them and then is accusing a member who has been here for a couple of years of spreading myths.
We appear from time to time to get such new members who then varnish as quick as they came.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

I don't perpetuate myths
http://www.biodiesel.org/pdf_files/fuelfactsheets/Materials_Compatibility.pdf

__________________
1984 Mercedes Euro 300D NA
1997 Ford F-350 Powerstroke Turbo Diesel

Okay now that that is out there. Which sizes and approximately how much fuel line should I buy. As far as I know 1 line was replaced 10 year ago. To play it safe I want to replace all the rubber lines.
Alan

__________________
92 500E Silver 66k
82 Porsche 911SC 84K
68 Cadillac ( Gone Now )
03 Suburban Z71 200K
85 300SD 217k From Original Owner ( Dad )

I have never seen any real results from purges. OTOH, replacing worn injectors and adjusting valves produces very noticeable results.

Get J30R9 5/16" fuel injection hose. Not J30R7!!! It's expensive. It may run $5/foot but will take B100 no problem. You will probably want to replace the three hoses from under the tank (supply, return & breather hose). For all three 2'+ of hose should do. Then measure the lengths of hose under the hood that you want replaced and you have your total length. Be smart and get an extra foot of hose...just in case.

You won't find our size return hoses in Viton at an auto parts store. I had to order mine from an online Benz website.

__________________
1984 Mercedes Euro 300D NA
1997 Ford F-350 Powerstroke Turbo Diesel

Thanks for the info. I am going out to install a new window regulator and install
my new glow plugs. As always the people on this site are extremely helpful.
Alan

__________________
92 500E Silver 66k
82 Porsche 911SC 84K
68 Cadillac ( Gone Now )
03 Suburban Z71 200K
85 300SD 217k From Original Owner ( Dad )