I was in Pep Boys yeasterday when I came across Redline's Synthetic "Diesel Catalyst." I was looking for the "Redline 85" as mentioned in another post... But this is all they had, and it promises a lot. However, I'm afraid to use it.... Is it any good? Once I use it, do I have to continue??? Being synthetic, will it hurt anything? Thanks in advance.

Randall,

Yes, Redline DFC is good stuff. It's the same thing as 85. You should continue using it once you have started. (start off with one bottle of it in the fuel tank then 1/3 bottle thereafter) It acts by cleaning the combustion chambers, increases the cetane level, cleans injectors, adds lubricity to the fuel for the injection pump and other stuff I can't remember off hand. If you do a search, you will find alot of people recommend it including myself. I don't know what your concern is for using it.

Herb
'82 240D

I am very curious regarding the technical reasons that require you to continue to use this product once you've started. Is it heroin for your car or what?

Have a great day,

It's an aphrodisiac.

Herb
'82 240D

Hi Guys,

I just used my first container of Redline 85 ... while I was skeptical initially, I gotta admit it seems to start a bit easier ... maybe, just maybe, it idles a bit higher and smoother with less noise. It does not smoke on full throttle any more ... and, seems, in general, a bit "friendlier?"

I could, on the other hand, be imagining much of this.

Does this match anyone else's experience with this kind of product?

__________________
George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg

I have just, within the past couple hours, poured my first bottle of Redline DFC in my 300D prior to my fill up. Calculated milage on the last tank came to 23.4 mpg - combined city/hwy with the a/c on half the time - the return trip from work. Will be interesting to see if there is any difference. I will report back after I have gone through this tank.
From a maybe soon to be Stanadyne to Redline convert

__________________
Jim

I usually add about 3-4 ounces of DFC per fillup; typically 3 oz if I expect to take 10 gallons, and 4 oz if I'm getting 15 gallons or more. Works for me.

__________________
Bob Roe
Lehigh Valley PA USA
1973 Olds 88, 1972 MB 280SE, 1978 Datsun 280Z, 1971 Ford T-Bird, 1972 Olds 88, 1983 Nissan Sentra, 1985 Sentra, 1973 230.6, 1990 Acura Integra, 1991 Volvo 940GLE wagon, 1983 300SD, 1984 300SD, 1995 Subaru Legacy L wagon, 2002 Mountaineer, 1991 300TE wagon, 2008 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon, all gone... currently
2007 Honda Odyssey Touring, 2014 E350 4matic

Randall,

DFC and 85+ are exactly the same formulation. Check the archives here on the forums by using the search feature. Redline continued to make both products after creating a new formulation they were going to sell as 85+ after they discovered that it was better than the original DFC. They simply never changed over the DFC label to 85+ in order to maintain their existing customer base for DFC.

And, Larry, this product is like vitamins for your diesel. The longer you use it, the better it works. I won't fill up my tank without adding a 1/3 of a bottle before doing so...

__________________

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."

I bought and used a bottle of DFC. Since I was doing a "cleaning dose", I just dumped the whole bottle in. However, looking at the label, it doesn't ell you how much to add for routine use. The outside of the bottle is marked in ounces, but there is no mention on the label of many ounces to add to each fill up.

__________________
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member

I thought it said somewhere on the bottle that a whole bottle would treat up to 100 gallons of diesel fuel. Lots of us use double or triple this amount. My mechanic adds a full bottle with each oil change, and I use 3-4 oz per fill up.

__________________
Bob Roe
Lehigh Valley PA USA
1973 Olds 88, 1972 MB 280SE, 1978 Datsun 280Z, 1971 Ford T-Bird, 1972 Olds 88, 1983 Nissan Sentra, 1985 Sentra, 1973 230.6, 1990 Acura Integra, 1991 Volvo 940GLE wagon, 1983 300SD, 1984 300SD, 1995 Subaru Legacy L wagon, 2002 Mountaineer, 1991 300TE wagon, 2008 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon, all gone... currently
2007 Honda Odyssey Touring, 2014 E350 4matic

The bottle of Redline 85 Plus I have in front of me says on it that it "Treats 25 gallons for cleanup dose. Treats 100 gallons for antiwear, and to improve cleanliness and efficiency."

It is marked as a 12 ounce bottle, so 12 ounces divided by 100 gallons equals 0.12 ounces per gallon, times 20 gallons equals 2.4 ounces per fill-up. However, Redline has advised me that Mercedes diesels should use about one-third of a bottle per fill-up to compensate for lower cetane rated fuel in North America. That would be 4 ounces per tankful.

Incidentaly, although Redline is known for manufacturing synthetic lubricants, the word synthetic is never used in descriptions of either DFC or 85+.

If you haven't done so already, if you want to know why we use this stuff, and what it does for your diesel, then you should go to:

http://www.redlineoil.com/products.htm

__________________

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."

Thanks Longston. You're right about it being basic math. I'll have to stop by Pep Boys and pick a couple of bottles.

__________________
1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member