I am looking for a product that will stop my fuel tanks from being corroded by ethanol. Does it exist? Where?

Posted by admin on Sep 5th

I have searched the net and so far, I have not found a product that will inhibit the corrosion caused by ethanol in gasoline. It has been known for a long time that ethanol causes corrosion in mild steel due to higher water content and acidic contaminants such as formic and acetic acid that can arise during processing (as well as oxidation of the fuel during storage). I asked my fuel supplier this question, and he told me that ethanol does not cause corrosion. I then read an article that was written in 1991 that details the problem and names products such as Shell ALCOOL (marketed in Brazil). I would think that the refiners would put rust inhibitors in the fuel(silly me!).

Filed Under: Water for Gas FAQ
Tagged: Being, corroded, Ethanol, exist, From, Fuel, Looking, Product, stop, Tanks

6 Responses to “I am looking for a product that will stop my fuel tanks from being corroded by ethanol. Does it exist? Where?”

Sep 5th at 11:50 am By: campmano

moisture dispacement product, a little bit of autotrans. fluid in the tank when you fuel. however moisture starts the corrosion process. but with the intro of beef talo into the fuel this problem will be much less a matter.

Sep 5th at 12:48 pm By: paul h

http://www.kbs-coatings.com/Tank-Sealers_c_7-1-0.html
Check with some local radiator shops…they usually have a process for coating the inside of fuel tanks to stop corrosion.

Sep 5th at 1:42 pm By: Wisdom

I can’t be sure this will work but a sealer sold by JC Whitney or Warshosky (same company) (Chicago I think) is a poor in liquid which is made to seal rusty or corroded fuel tanks.

Sep 5th at 2:38 pm By: Johneye

Forget about it, the car will be long gone before the gas tank rusts out. Now you can worry about something important.

Sep 5th at 3:32 pm By: pnclement

There is no product available because no such problem exists.

I’ve been a mechanic since 1969 and repaired over 20 leaking fuel tanks, both gasoline and diesel, on all types of cars and trucks. Not one of them ever rusted out from the inside, to the outside of the tank. 100% of the tank failures were due to rust on the outside of the tank. All were due to a support strap or other piece of metal being in contact with the tank and rust developing between them.

All fuel tanks, except diesel tanks on trusks, are zinc coated on the inside. They will not rust due to gasoline with ethanol added. Even when water gets into a tank accidentally, the tank still won’t rust because there is no oxygen is present. Without oxygen present metal can’t rust.

It is an urban myth that ethanol in gasoline causes rust in a tank. Unless you are running 100% ethanol, which in that high of a concentration can, by itself, be corrosive, it is not going to rust out or corrode the indise of your fuel tank, steel fuel lines which are also zinc coated, or fuel injectors/throttle body.

Sep 5th at 3:42 pm By: depotcopycat

diy with a KBS Coatings kit. follow the directions. pretty straight forward.

Reviews

Recommended Products

Recent Comments

Tags

Navigation

I am looking for a product that will stop my fuel tanks from being corroded by ethanol. Does it exist? Where?