The Blue bottle I bought at Walmart for $5+ and the Yellow bottle at Advanced Auto for $11+. Blue says, "auto transmission slip-stop & leak fix." On the back it says,"for larger transmissions, 10 quart or more, use 2 bottles. The Yellow says, "high mileage 75K auto transmission treatment." On the back it says, "One bottle treats 9 quarts of ATF."

The blue bottle is primarily a stop-leak. The yellow bottle is essentially a concentrated detergent to help break up varnish and sludge. Go with the yellow if you're trying to help shifting issues.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Most important is what problem are you trying to fix?

There is no such thing as mechanic in a bottle.

Thsnk you for explaining the differences ! .

I've used the yellow bottle to good effect, it slowed the weepy input seal way down too .

Yes, Mechanic in a bottle is a suspect thing but sometimes chemicals can help .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Stop leak is basically brake fluid. Brake fluid will swell rubber not rated for BF.

The problem is stop leak swells all rubber in the trans including clutch drum seals. As the seals swell, the pistons stick in their bores causing clutches to drag. This causes excess wear and eventually transmission failure.

Diesel Purge?

__________________
1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

Amongst other good chemicals, some are not capable of learning new things sad to say .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Snake oil. It seems most people who have problems that it purposes to clear up don't have the problems resolved by it. Just a great way to blow $15 and an hour or two of your time IMHO.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

So then, it's a good idea to leave accumulated crud in the I.P. and Ma 'Benz doesn't know how to properly maintain Diesel engines ? .

Seems odd to me .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Hmm, I must have missed the part in the owner's manual where it specified to run diesel purges. Care to share where MB said it was necessary for these cars? Or any other additive for that matter?

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Look in the M-B service publications please.....

Don't be pedantic just because you make a public error .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Put up or shut up. If there's a publication that pertains to these engines that says to do periodic "diesel purge" treatments, it will be public and freely available in a written document from MB. Shouldn't be hard to find and post here. I'm talking about a published numbered document from MB, not a 3rd party. If such a document exists pertaining to the OM61x and OM60x engines and you can produce it, I'll happily concede to you! The FSM doesn't contain such information, nor does the owner's manual. If they do, it's well hidden.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Right ;

MB doesn't approve of Moly Diesel Purge products,. nor cirtic acid cleaning of the cooling systems, so forth and so on .

The point of these forums is to learn I'm not going to read for you if you're unwilling to do basic research .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

You made the claim that it's in the MB publications. Back it up. If you're right, it should be easy. I'll wait.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]