I have to sadly disagree with the guy above who thinks ethanol means no more corrosion problems. The ethanol pulls the water out of the air in tank to mix with the fuel. Take some gasohol outside on a humid day and leave it for awhile, come back and there will definitely be water in it in less than 15 minutes in many cases, used to not do that. I have seen it innumerable times. I also have several vehicles that have a tendency to sit for awhile, some still carbureted. Since ethanol fuel became commonplace, I have seen corrosion in fuel parts go up like 300-400 percent. Used to just be varnish which was easily cleaned off, not anymore, the parts are CORRODING and beginning to go bad. Best protection seems to be filling tank to minimize the airspace, which breathes moisture in and out. No problem on constantly run vehicles, but let it sit and.................
Most people think that because one uses an alcohol to get moisture out of gas tank as in 'dry gas' type of product that more is good. Definitely NOT, that works because vehicle used constant enough to pass the now absorbed water through. Once you have like a spare vehicle that sits until used though this stuff gets to be a problem. You'll never hear THAT in a ethanol commercial, or the fact that it gets much worse mileage either. Drag racers that run alcohol have known for years that it can damage stuff. It also leaves behind a gum that normal petroleum distillated solvents won't touch, just ask Ford and while there also ask them about all the Focus fuel pump modules they recalled and yanked for clogging. Mine did it, that gum all over the pickup screen, 100% stopped up. Solvent including acetone would not touch it at all. WATER broke it down instantly, put back together car now running again for 3 more years, about time to do it again as can die on the sudden right hand turn again. Ford paid MILLIONS for that one, caused by ETHANOL, but nobody will admit it. My official FORD recall notice mentioned 'fuel additives', none by name. Look close at that fact stream. Water or something that mixes with water (guess what) obviously was the carrier that kept gum dissolved to enter fuel and disperse. Wasn't gas, since gas doesn't cut it. Took a long time to accumulate, ergo had to be something in minimal amount in fuel. I give you ethanol, it is not necessarily your friend, and it certainly could care less for fuel pumps with metal parts. Ask Exxon, who initially thought they could pump ethanol to refineries through same pipelines as oil. Hundreds of millions of dollars later and some wrecked (CORRODED!!) pipelines later, they quit doing that.
Most people think that because one uses an alcohol to get moisture out of gas tank as in 'dry gas' type of product that more is good. Definitely NOT, that works because vehicle used constant enough to pass the now absorbed water through. Once you have like a spare vehicle that sits until used though this stuff gets to be a problem. You'll never hear THAT in a ethanol commercial, or the fact that it gets much worse mileage either. Drag racers that run alcohol have known for years that it can damage stuff. It also leaves behind a gum that normal petroleum distillated solvents won't touch, just ask Ford and while there also ask them about all the Focus fuel pump modules they recalled and yanked for clogging. Mine did it, that gum all over the pickup screen, 100% stopped up. Solvent including acetone would not touch it at all. WATER broke it down instantly, put back together car now running again for 3 more years, about time to do it again as can die on the sudden right hand turn again. Ford paid MILLIONS for that one, caused by ETHANOL, but nobody will admit it. My official FORD recall notice mentioned 'fuel additives', none by name. Look close at that fact stream. Water or something that mixes with water (guess what) obviously was the carrier that kept gum dissolved to enter fuel and disperse. Wasn't gas, since gas doesn't cut it. Took a long time to accumulate, ergo had to be something in minimal amount in fuel. I give you ethanol, it is not necessarily your friend, and it certainly could care less for fuel pumps with metal parts. Ask Exxon, who initially thought they could pump ethanol to refineries through same pipelines as oil. Hundreds of millions of dollars later and some wrecked (CORRODED!!) pipelines later, they quit doing that.