Wow, I finally broke down and went to NAPA after someone here posted a good price for the 8 oz bottle. After reading enthusiastic threads here I decided to give it a try. Now let me first say that my Dad ( original owner since new) tried various products as did I when I got the car. After the first tank I noticed a huge difference. I did not do a purge I just let the tank get low added 2/3 of the bottle and drove it around. The next day I filled her up and did an Italian tune up. I just filled her up again and man !. She idles smoother and quieter.
Now I am really anxious to adjust the valves ans see how she runs. Thanks to all for recommending this product.
Alan

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

From their web sight "In diesel application, add 1 fl. oz. of Star tron Diesel Additive for every 32 gallons of diesel fuel."

8oz should treat 256 gallon.

"Can I add too much Star tron?

Q. Can I add too much Star tron to my gasoline or diesel fuel?

A. No, you can not overdose your fuel with Star tron. If you add too much of the Star tron product to gasoline or diesel, no problems will be encountered."

Glad that you got the result you wanted.

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1999 Mercedes E300TD daily driver sold at 238K miles 106K miles were mine, rust worm got it :-(
2006 Mercedes CDI new daily driver! 56,000 miles May 2016 now 85,625 Apr 2018 and Apr 2019 101,000 miles Apr 2020 109,875. March 2024 135,250

What was your objective for using the product?

I think you have killed every bug in your fuel system and probably some that havent even got into it yet !!!
You could say it was a bit of over kill !!

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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 didn't see any Star Tron but they had some kind of germicide stuff with all kinds of warnings on the label. It was a big bottle.

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My occupational hazard bein'
my occupation's just not around...
1980 300SD
1980 300SD

Sorry I have not followed up here. The point of adding the Startron was due to my schedule. When I got the 85 300SD from my Dad just over a year ago it had sat off and on for many years. I planned on running Biodiesel when available.
I was changing the fuel lines anyway so I went with the Viton hoses. Changed all except the ones under the fuel tank and the tank strainer. The car had almost stopped running a few times when the tank got low ( yes I changed the fuel filters and had extras in the glovebox) I have not been motivated to pull the tank strainer as long as I keep 1/4 tank of fuel. Anyway after reading here about the various products and my own experience I went with the Startron.
Now let me say I was surprised when I used a couple tanks of Biodeiesel by the results. Now after running 2 tanks after a full does ( and then some) of Startron I am a believer. Smoother idle, no smoke, and definitely more power.
Now on to the valve adjustment and B2 piston replacement, and tranny service.
I am not knocking the other products but I have never had such a great outcome from any fuel additive.
Alan

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

I purchased Soltron at NAPA. Is Startron the same? and, if so, which one? Amazon has a bunch of different Startrons by Starbrite.

It's the same stuff, I don't know why napa still carries the old/different label. That stuff worked wonders in my tank

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth