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Old 02-10-2014, 13:20   #1
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"Fuel Right" cleaning diesel tank

I bought a boat from an owner that rarely navigated. While navigating to my home port the starboard fuel line clogged. Got it unclogged and made it to port. Looked in the tanks and they were filthy. I tried bio stuff and still got clogs if the sea was rough and the fuel level was down. I rigged up a fuel polishing system and that helped but it did not remove the growth that was on the walls of the tank. The tanks are baffled and cannot be removed easily.

Fuel Right claims to inhibit and remove sludge so I bought some (first picture). Each tank is 175 gallons. The second picture is the tank before the product. As you can see the sludge is half way up and gives a clear contrast. The directions say use 6 oz in each tank but I had a brain fart and put in 8 oz. The tank was completely full. The product was added July 29, 2014. The third picture is the same tank taken on September 29, 2014. No more product had been added.

There is clearly less sludge on the walls than before the product. Of course the filter was filthy but I have not had anymore clogged fuel lines. I filled up the tanks again on October 1, 2014 and put in the remaining 8 oz (4 oz in each tank). I was going to wait until the tanks are empty again before posting but since so many people are having the same problem I decided to post now. I will continue to use this product. I did not compare this product with any others that claim to do the same thing.
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Old 03-10-2014, 00:25   #2
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Re: "Fuel Right" cleaning diesel tank

clayzone,

Thanks for the post. Very interesting.
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Old 03-10-2014, 02:08   #3
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Re: "Fuel Right" cleaning diesel tank

I've put it in my fuel tank too, but it's on the slip and have not had a chance to take the tank covers off and have a look. Hopefully in the next two weeks I'll be doing that.
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Old 03-10-2014, 05:39   #4
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Re: "Fuel Right" cleaning diesel tank

Is there pitting mixed in with the dirt in the image? It is hard to tell, but some of the shadows look that way.

If the prior user rarely went far, then you started bouncing the boat around, is it also possible that you simply cleaned the tank by sailing more actively? Also, assuming the "bio stuff" was a biocide, it is normal for those to increase plugging for a time, as dead bacteria fall off. It is better to use them for maintenance. It is also possible you did not have bacteria.

The pitting question is the more interesting. In some lab testing Fuelrite actually increased corrosion at the same time it cleaned. I suspect it had to do with how it emulsifies the water.
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Old 03-10-2014, 05:53   #5
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Re: "Fuel Right" cleaning diesel tank

Quote:
Originally Posted by thinwater View Post
Is there pitting mixed in with the dirt in the image? It is hard to tell, but some of the shadows look that way.

If the prior user rarely went far, then you started bouncing the boat around, is it also possible that you simply cleaned the tank by sailing more actively? Also, assuming the "bio stuff" was a biocide, it is normal for those to increase plugging for a time, as dead bacteria fall off. It is better to use them for maintenance. It is also possible you did not have bacteria.

The pitting question is the more interesting. In some lab testing Fuelrite actually increased corrosion at the same time it cleaned. I suspect it had to do with how it emulsifies the water.
Good point and a very valid concern. I bought a 30 year old boat that spent a lot of time at the dock and had the same problem in the fuel tanks, fortunately only in the bottom sump area. I pulled the tanks and had them steam cleaned and found pitting in the areas that had been under the black grunge.

Check the photos I took of one section I cut out of my tank on this thread.

The inside of a fuel tank

I ended up cutting out sections of the bottom of the tank and welding on new plate due to the leaks. By the way, the leaks didn't really show until I cleaned the tanks. Guess the grunge was keeping the holes plugged.
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Old 03-10-2014, 09:10   #6
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Re: "Fuel Right" cleaning diesel tank

Quote:
Originally Posted by thinwater View Post
Is there pitting mixed in with the dirt in the image? It is hard to tell, but some of the shadows look that way.

If the prior user rarely went far, then you started bouncing the boat around, is it also possible that you simply cleaned the tank by sailing more actively? Also, assuming the "bio stuff" was a biocide, it is normal for those to increase plugging for a time, as dead bacteria fall off. It is better to use them for maintenance. It is also possible you did not have bacteria.

The pitting question is the more interesting. In some lab testing Fuelrite actually increased corrosion at the same time it cleaned. I suspect it had to do with how it emulsifies the water.
There are two ways to deal with corrosion in additives - 1. using metal deactivators that tie up the metallic salts that can impact corrosion - this is commonly in most additives

2. Using chemistries that provide corrosion coatings that deposit over time

The 1. method is very effective in dissimilar metal environments whereas the #2 method not so much. While the corrosion test clearly identified this - it did not clarify why

The mechanism to dissolve the sludge is simple - it "melts" the sugars that hold the bacterial colonies together allowing it to be dissolved and the insoluble content (broken down fuel) deposits in the filter. This is why he encountered a dirty filter.

The positives of the corrosion coating - as long as it is present, it effectively prevents the further formation of microbial contamination even in the presence of water.

The Fuel Right technology do not cause the pitting - it simply did not set up the corrosion coating to prevent the accelerated corrosion due to dissimilar metals - the test is misleading

The other technologies that performed very well contain the metal deactivators - however, they do not fair well when you test over an extended period in a diesel fuel immersion test.

The other technologies are effective in their function but are not designed to deal with microbial sludge. You can't compare apples to oranges.
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Old 03-10-2014, 10:32   #7
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Re: "Fuel Right" cleaning diesel tank

My tank was not cleaned by just using the boat. I bought the boat in April 2012 and have used it almost every weekend since. There has been several fill-ups of diesel. Hey, I live in Venezuela where diesel is the cheapest in the world! I am convinced that the sludge that was there has been there since before I bought the boat. The purpose of my post was to show only that Fuel Right appears to reduce sludge like they claim. I don't know if it does or does not do anything else. I also don't know if other products will do the same thing for less. This is just an option for those that can't or won't clean a tank with steam, etc.

I saw this test of additives that says Fuel Right caused corrosion. I don't know if there is pitting inside my tank or not. Maybe next time I will check.
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Old 03-10-2014, 11:45   #8
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Re: "Fuel Right" cleaning diesel tank

Quote:
Originally Posted by clayzone View Post
I saw this test of additives that says Fuel Right caused corrosion. I don't know if there is pitting inside my tank or not. Maybe next time I will check.
Your last picture seems to show pitting, now where it came from is another question, myself I have a hard time believing it came from your additive as I assume it wasn't in there for a long time, I bet the sludge is the cause of the pitting and the best thing you can do is get rid of the sludge, which you seem to be doing.
Thank you for the product review, I hadn't heard of fuel right, good to hear it works, most additives I assume are snake oil
I need to borescope my tank to see what is going on in it as I don't have an inspection hole.
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Old 03-10-2014, 13:09   #9
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Re: "Fuel Right" cleaning diesel tank

Temp solutions are fine but you still have to empty and clean the tanks. I would chuck out all the bad fuel too.

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Old 03-10-2014, 18:13   #10
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Re: "Fuel Right" cleaning diesel tank

New to this, so please be gentile.
I read these forums a lot, very rarely get involved. But I feel I need to say this.

I have used this fuel right product through a few vessels to get the feel for it. I have found that it certainly cleans the tanks. One of my vessels is in Indonesia and the fuel there is horrific, one almost needs see-thru jerry jugs to check the fuel as it comes out of the bowser, sometimes it is black and chunky!! UN-Believable. I have found that if I put in fuel right at the time of filling the jerries, within 2-3 days it will drop everything to the bottom and I then pour off clear crisp diesel... the rest I slosh out and prevent it from going into the tank.

On the corrosion query, we had one vessel that holds over 5,000 litres of diesel, where corrosion had pitted through 12mm of Aluminum tank. Since treating with this product, the pitting has ceased and we have had no further issues. This was purely put down to the product providing a protect layer and electrical impedance.

In the commercial boating world, we do enough miles and trials of products to know when things work and soup to nuts, this thing has the goods.
actually, give it a whirl in gas, diesel everything.. I have had it in some tender's 2-stroke fuel mix for over 2 years, the engine fires first time and the fuel burns as if it was new... try the stuff!

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Old 26-08-2015, 15:42   #11
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Re: "Fuel Right" cleaning diesel tank

This is my final post re this subject. I have now used Fuel Right for over a year. During that time I filled my tanks several times, adding Fuel Right each time. With heavy seas I was still having problems with one of my engines stopping due to clogged fuel lines. I decided to just cut access ports in the tanks so I could thoroughly clean them. When I did gonk was clearly seen. After a year of use the Fuel Right did not facilitate removal of all the gonk, nor do I think it ever would. The line in the side is where I used my finger to show contrast. Bottom line, Fuel Right will help but don't count on it to eliminate really bad problems.

BTW I used Seabuilt access covers. They seem expensive but the material and engineering were excellent. Easy to put in place and no leaks. Highly recommended.
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Old 03-09-2015, 16:03   #12
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Re: "Fuel Right" cleaning diesel tank

If you send me an email - I can explain what is happening in your tank. I can be reached at tarivard at gmail
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Old 03-09-2015, 16:14   #13
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Re: "Fuel Right" cleaning diesel tank

Quote:
Originally Posted by clayzone View Post
This is my final post re this subject. I have now used Fuel Right for over a year. During that time I filled my tanks several times, adding Fuel Right each time. With heavy seas I was still having problems with one of my engines stopping due to clogged fuel lines. I decided to just cut access ports in the tanks so I could thoroughly clean them. When I did gonk was clearly seen. After a year of use the Fuel Right did not facilitate removal of all the gonk, nor do I think it ever would. The line in the side is where I used my finger to show contrast. Bottom line, Fuel Right will help but don't count on it to eliminate really bad problems.

BTW I used Seabuilt access covers. They seem expensive but the material and engineering were excellent. Easy to put in place and no leaks. Highly recommended.
After a year of using fuel right in mine, I'll be exceptionally happy if mine is anywhere near as clean as yours.

I too have had no problems with fuel filters constantly clogging when out in rough seas. . however, I did build a new filter system using two Racor 500's, but whilst that would have improved filtering it wouldn't have helped in the inside tank cleaning. In about a month I'll be opening my inspection covers, so it will be interesting to see what's there.
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Old 03-09-2015, 16:26   #14
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Re: "Fuel Right" cleaning diesel tank

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In about a month I'll be opening my inspection covers, so it will be interesting to see what's there.
Please post pictures.
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Old 03-09-2015, 16:30   #15
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Re: "Fuel Right" cleaning diesel tank

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Please post pictures.
Certainly will do. I have pictures taken from the last time's I opened them before putting in Fuel Right.

I don't expect the outcome to be as shiny as these ones as mine are steel not aluminim or stainless. Will be interesting I think.

But what I do know is that so far I've had no more engine starving problems which I'm very happy about.
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