Put about an extra 1/3 gallon fuel in, did this harm anything?

JayQQ97 said:
Plastic or metal tank?
Or does it make any difference
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Consider the reference is to CAPACITY. The material of the container is not important.

I can hold 35 gallons in a plastic, glass, steel, aluminum, wood or any material.

I think half barrels of beer are in Aluminum kegs.
 
the material of the tank IS important
Gen2 taco has a full plastic tank?
if it is metal... i have read that over a long period of time the use of ethanol blended fuel WILL rust the inside
 
JayQQ97 said:
the material of the tank IS important
Gen2 taco has a full plastic tank?
if it is metal... i have read that over a long period of time the use of ethanol blended fuel WILL rust the inside
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Only if the ethanol fuel separates, and sits there for years in which all newer vehicle tanks have been made of plastic for that reason. Not many drive vehicles older than 25 years anymore. The auto industry, and their owners have moved on.
 
Yeah, but most if not all run on ethanol free fuel, or even premium which won't go stale for a much longer period. Much of those owners will add a fuel stabilizer also like stabil, or Fitch to their fuel system.
 
Plastic fuel tanks came about for many reasons. The most common reason is cost. It is less cost to blow mold a plastic tank than it is to stamp, form, weld and flush a steel tank. Also plastic is more resistant to punctures in the event of an accident.

Ethanol fuel will not rust a steel tank. You're being sucked in with an ol' wives tale.
 
Rock62 said:
Plastic fuel tanks came about for many reasons. The most common reason is cost. It is less cost to blow mold a plastic tank than it is to stamp, form, weld and flush a steel tank. Also plastic is more resistant to punctures in the event of an accident.

Ethanol fuel will not rust a steel tank. You're being sucked in with an ol' wives tale.
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I know how full a tank is kept will make a difference overtime how quickly it may or not rust. The more air you keep out the better because of moisture. H2O
 
Actually a steel fuel tank will eventually rust when ethanol fuels sit idle in them for years. The water in ethanol fuel separates....this water being heavier will sit at the bottom of the tank, and eventually cause rust. I've seen first hand of this happen in tanks 20 years later.....the inner bottom of the steel tank will end up with rust scale. You can add some startron fuel treatment designed to prevent ethanol fuel separation during storage.
 
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Lets be clear. The ethanol is not causing the rust of a steel tank. The water that has gotten into the tank is causing the rust.

Water can enter a tank by many paths. Humidity, leaking fuel cap, missing fuel cap, failing evap system..... are some of the common routes.
 
That ethanol sucks in the moisture in the air and rotts them metal tanks
 
Absolutely correct.

It isn't the ethanol rusting the tank. Its the WATER.

Yes, ethanol is hygroscopic. Has anyone determined how much water ethanol will absorb? Consider. Generally, fuel blend is about 10%, so in a 20 gallon fill roughly 2 gallons of ethanol will be in the tank. What conditions are needed for quickest absorption in a fuel tank? What percentage of water will ethanol keep in suspension? Anyone have a good grip on chemistry?

If this was a serious wide spread issue, then 100s of thousands of claims would exist. Truth is, there are few examples of this issue that has been blown up by the misinformation net. Ethanol blend has been in fuel since the mid-70's. Also Brazil, burns ethanol, not sure if they use gasoline.

Does anyone remember the product that was common to prevent gas line freeze? HEET. Its mostly ethanol. Its been around since Moses got his driver's license.

Please quit spreading half-truths and inflated claims. You're beginning to sound like an Tik-Tok influencer.
 
All I can tell you by experience, you have to have the right conditions for ethanol blended gasoline to separate early leaving water to sit at the bottom. I've stored e10 87 fuel for about a year, and it was still ok. I have 89 e10 right now sitting in a fuel tank in my shed thats located in a shady part of the yard...been 3 years, and it still smells good. Higher octane fuels will keep fresh longer. Imo, it's going to take over 10 years with ethanol fuels sitting idle in a metal tank depending on the fuel grade to cause any serious rusting at least here where our fuel is very fresh. I've bought fuel in other states, and some parts of northern quebec that was stale with water, and full of sand, so thats something else to consider to.

As far as heet goes, its why they don't recommend using more than one bottle for like a 20 gallon tank. The ethanol can attract more moisture being counterproductive. They have other gas line anti freeze, and window washer fluid products made with methanol which one should avoid buying.
 
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