Hello all,

I replaced my left fuel level sensor in the gas tank now twice. I just filled up the gas tank and the gas gauge only goes up to three quarters full. I don’t know what else to do.. any suggestions? I have the star c3 computer and no codes are coming up.

 

Run Techron at twice the recommended concentration. Do it for a few tanks. Then come tell us how it worked when nothing else would.

Cheers!

 

I ordered 2 bottles of it from my local autozone. Let’s see what it does. I also read the reviews where a few people said that it helped with the gas gauge issue. In the last 2 years I have replaced the fuel filter, fuel pump, and replaced the left fuel level sensor twice. Let’s hope this works for me as well cause it’s super annoying to see the gas gauge show the incorrect level constantly

 

 

Long shot but at this point check connector/pins @ rear SAM.

 

Hello,

so it’s been 2 full days since I added a bottle of Techron in my gas tank which is full and the gas gauge level has slowly moved up towards indicating it’s full. I only put 20 miles on the car since filling up and adding Techron. I am hoping that the Techron did the trick.

 

Techron is one of the only additives that does anything useful, in any meaningful sense. It is actually a factory recommendation from several automakers, specifically for issues such as stuck fuel gauges.

I first ran into it in the early 2000s after I bought an 1965 Oldsmobile Ninety-Eight convertible that had been sitting for about 15 years. Techron unstuck the gauge after a few weeks.

 

I feel like if you've owned an 80s or 90s GM car, you learned about Techron. That's why I've known about it for the past 2 decades, as well. I remember trying to find a Chevron station to get some Techron in every tank (I have since gone all-in on Shell V-Power...). GM was part of the whole Top Tier gas certification (as were other automakers) which I think was borne from their issues with Multec injectors. But I digress.

 

Unfortunately i got my license in the mid 90s lol. So far so good so I am hoping this did the trick. I did get a code for Y58/1 a couple of times which I cleared but that’s gone and hasn’t come back. I ordered a new purge valve which was $30 on eBay and is oem.

 

Clb0099, if you need to take your tank level down, say a road trip or to test your Techron, you can estimate remaining gallons using mileage from Command . Start trip odometer at 0 when tank is full, and you can estimate remaining gallons by subtracting gallons used from full capacity 21.1 gallons (don’t quote me on that going from memory). I usually get 400plus miles on a full tank, winter slightly less. Good luck and keep us posted.

 

I think the tank is more like 23.x.

 

I run a large bottle of Techron every first of the month to a full gasoline fill in my S600. Buy a case from Amazon/Ebay.

 

Additives are a scam. You still have a problem the Techron band-aid hasn't fixed. Notice how no one has explained the mechanism of action?

I'd follow through with konigster's post.

 

Nearly all additives are snake oil. However Techron is recommended by Mercedes Benz and actually sold in a relabeled container - part no. A000 989 25 45 12


Here is an SAE paper confirming its benefits: https://www.sae.org/publications/tec...ontent/831709/

 

This is correct. Most cars don't and shouldn't require frequent treatment but there are many circumstances where it can resolve issues with the fuel system.

 

So Techron paid off a Benz exec and the SAE to boost sales. Awesome. Good luck with your additives.

 

Negative. Gasoline/petroleum products are solvents. Adding "cleaning" chemicals into a system filled with a chemical that dissolves everything inside it is logic you would expect from a 5 year-old. Waste your money however you like, though. Corporate scams are nothing new.

 

That is completely untrue. Go read some white papers. Yes gasoline is a solvent but that doesn't mean it is a perfect detergent. Gasoline would require no detergent at all and never gum up if your logic was correct. Granted, Top Tier gas is way better than it used to be in terms of cleaning power but that doesn't mean Techron is completely useless. What it does mean is that under normal circumstances you should not need it.

 

You've been successfully trapped inside a consumer grey area. Corporations love people like you. Not only do you consume their products, you defend them and do their bidding for them for free.

Ever wonder why additives are never listed in owner's manuals?

 

We're not talking about carte blanche use of "additives." We're talking about Techron. Your world view does not need to be challenged if you accept that Techron has a time and a place.

 

So I put my second bottle of Techron in another tank of gas and for me it seemed to fix my issue. I checked the pins at the rear Sam and they were all good. Normally I would say that most additives are snake oil but as of now Techron has worked for me.

 

Did someone from Chevron steal your significant other or violate them with a bottle of Techron?

In this thread alone, a number of people - including OP - have stated that Techron showed positive and near immediate results when they used it.

We have also posted documentation from Mercedes itself recommending it.

We have stated why it works, providing supporting documentation.

Despite all of this, you still post this crap. Why?

In any case, here is more manufacturer documentation recommending Techron:

https://webcache.googleusercontent.c...&client=safari

https://static.nhtsa.gov/odi/tsbs/20...60286-2280.pdf

https://www.fcacanada.ca/owners/en/m...van-OM-4th.pdf

 

JJKCMO,

I can thank you enough for your help. I keep saying this on here on different threads that these forums are to help people and not bad them. JJKCMO Gave me great advice and it worked for me. If you don’t like the advice that’s fine just keep it moving. My car is a high mileage one and if $20 worth of Techron helped me then I can’t complain.

 

There are many reasons why Techron worked to restore the fuel level sending unit even if the official MB response is "replace the faulty fuel level sending unit." Both of those things can be true without the world imploding. One of the reasons is it may not work in every case, there could be other issues that require diagnostics, or perhaps the fix isn't permanent.

Here's another additive anecdote:
I bought a car in mid-2017 and it turned out to be afflicted with a torque converter clutch issue. What happens is the clutch shudders and you can feel the engine RPMs going up and down on the highway for example. The official fix? Replace the torque converter and do a complete fluid flush. But I didn't do that. It was a $5,000 used car. It had 125k on it or so when I bought it.

I did some research and stumbled upon an additive (GASP) called Lubegard Instant Shudder Fixx.

Being hesitant to just add a random product to my transmission, I did try a flush change or two. The fluid WAS nasty and did temporarily seem to improve the issue but after about 18 months of doing more fluid changes, I said, screw it, I'll give it a try. So I changed the fluid I guess a fourth time and added the 2oz of product with the new fluid. It fixed the issue almost immediately. Now was that the end of it? No. It came back in about 10 months and I did another fluid change and another 2 oz of the additive. That was the last time I had to do that. I sold the car a week ago and the issue was not present. 158k on it at that time.

I'll say again: certain additives have a time and a place. Plus, go read the Amazon reviews. It clearly works in many similar applications. Even if it's not permanent, who cares? It costs $8. Change the fluid, add it again - or just add another 2oz. But I digress (again).

 

Adding Techron also worked in my 2000 C5 Corvette that spends so much of the Winter time in the garage. It was all over the C5 Forums with tons of owners complaining about the low reading on the fuel gauge with a full tank. Seems that the small amount of alcohol in the gasoline causes the fuel gauge sensor in the tank to read abnormally low.

It may be snake-oil as Senecat says, but it certainly cured my Mercedes and my Corvette. I am not surprised it worked also for clb0099.