I have seen alot of people on this board putting alot of different things in their fuel. What do you add and why?

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

I don't use additives anymore. I did some tests and found there was no benefit MPGwise, and it didn't make my car run any better. People will tell you ULSD is gonna destroy your car's fuel system and that's why you ought to add additives. They are just uneducated about it. Lubricants are already added to the fuel before it reaches the pump, so you don't need additives for that reason.

Sometimes, a water dispering additive, Biocide additive, or anti-gel additive may be needed, but that's only when you've got water in the fuel, cold weather, or a fungus attack in the fuel tank. Sometimes, an additive can cure rough running, but once it starts to run good again, you can stop using it.

__________________
'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

powerservice cetane boost in the white bottle

acetone from HD (thins out the WVO)

startron diesel fuel additive; ( Keeps filters clean gazilion X longer...)


All used because They help with me running on used fryer oil.....



..

__________________
'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

Biodiesel. Renewable, clean, domestic, best performance.

__________________
'83 240D with 617.952 and 2.88
'01 VW Beetle TDI
'05 Jeep Liberty CRD
'89 Toyota 4x4, needs 2L-T
'78 280Z with L28ET - 12.86@110
Oil Burner Kartel #35

http://i16.photobucket.com/albums/b1...oD/bioclip.jpg

I use Schaeffer's SoyShield. It is a soy biodiesel-based product.

I used it for years in my TDI and gained over 2mpg vs no additive.

I just finished my first full tank on it in the 300SD. Obviously too early for a verdict, but that first tank with Soyshield gave my highest mileage to date (32.3mpg) and was 5% over my average of 30.8mpg. Driving conditions were typical, fuel from the same vendor, etc.


Tim

__________________
2009 VW TDI Jetta Sportwagon 172k miles (rear-ended harder than Elton John on 8/4/13. Total loss)

1991 Volvo 240 142k miles (T-boned by a stop sign runner. Total loss)

Me too!!

Quiets and smoothes the engine, lubricates better, smells better, supports US farmers, and it burns cleaner.

__________________

I use PowerService grey bottle in winter to help with cetane, putting as much in my favor as I can. Also use a bit of acetone. Bio is fine, if you change out your rubber parts, and don't mind routinely replacing your primer pump, and really keep everything cleaned up.

__________________
83 SD

84 CD

My 99 likes a splash of Redline 85 or as little as 1% Biodiesel per tank.

Quiets its idle even more.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

i use the powerservice in the grey bottle, it boost cetane and keeps my injectors cleaned up

__________________
82' 300SD

I use Lucas upper cylinder lubricant and fuel system additive because when added, my engine idle speeded up 200 RPM. This means it is reducing friction and it is helping lubricate my valve seats! Yes, I too use biodiesel and lucas will also help me keep my fuel system clean and free of water, funguses and fuel cooties! I don't regret adding this, performance went up and fuel economy improved about 2.3 MPG!

I use an additive that only boosts the cetane number of the fuel.

8+ CETANE IMPROVER

Fuel PowerIncrease Cetane - Increase Efficiency
Diesel engines function on the principle of Auto Ignition. The range of temperatures varies from 410ºF to over 1040ºF, this wide range is due to lower cetane numbers. 8 Plus Cetane Improver will raise the cetane level of your fuel providing faster starting, reduced engine noise, reduced smoke and particulates, and increased power and acceleration.



http://www.fppf.com/8cetaneimprover.asp

I agree that you need some kind of cetane booster considering the crappy diesel fuel that's sold these days. It's not near the quality these engines were designed to run on.
I use PowerService. Not too much, just what it says to use.
I also use Startron as a biocide and it also cleans injectors, valves, etc...

Danny

__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination

I use RedLine Diesel Fuel Catalyst, same as RedLine 85+ only different label, good lubricant/cetane improver/cleaner.

__________________

Gone to the dark side

- Jeff

Power service in the white bottle as a cetane boster.

I havn't used anything in the SD yet, your really don't seem to need an antigell in the winter around here. I know not a good idea, I am curious as to when the fuel will actualy gell, because at 0 it didn't.

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

For the 300TD and 240D I use the following.

Power service products.
The white bottle for gel protection, cetane boost and injector cleaning
The Biokleen for fungus

http://www.powerservice.com/

For the 560SL I use:

Chevron Techron premium gas.
Chevron Techron injector cleaner if necessary.

http://www.chevron.com/products/prodserv/fuels/additives/concentrate_plus.shtml

For Myself I use:

Tullamore Dew Irish Whiskey for attitude adjustment

http://www.tullamoredew.com/default_flash.asp

And Laphroaig Single Malt Scotch for deep attitude adjustment.

http://www.laphroaig.com/

Dave

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car