[kyral]

Originally Posted by Kingtal0n

Ethanol is a very powerful solvent, sterilizing, cleaning agent. And S14 fuel tanks are very old.

Imagine you have a 20 year old fuel tank and pour in a very powerful cleaning agent for the first time in 20 years. Do you realllyy want to run a fuel system right after you pour in the cleaning solution?

As you should be able to imagine, when you put in the alcohol, it will probably solubize (soluabize? solubilityize...) It will probably dissolve all manner of filth from the tank and pull that into solution. Thus I believe you will be setting yourself up for a crazy amount of fuel system failure... clogged filters, ruined pumps, who knows what will happen next.

The other issue is, even if the tank is unaffected itself, there are many items inside fuel tanks which were never expected to come into contact with high concentration Alcohol. Maybe some metal piece or foreign O-ring materials, or maybe some low quality plastic with poor seals, who knows what. You put that Alcohol into a tank without going over/through every single submerged item is asking for big trouble.

The only way I would put alcohol fuel in my S14 tank is if I removed it first, completely empty it out, then wash and clean it spotless like new. And remove everything from it and inspect those things and verify they are alcohol friendly (perhaps by submerging them in a bottle of alcohol on the kitchen table for a while... or something like that). It's just my way of being absolutely sure... because a fuel system failure is no joke. Thousands of dollars in repeat spending and the chance of a double failure when you forgot to clean or replace just one thing.
Probably the only way I Would use alcohol fuel is by installing a fuel cell and strict return system for that cell to contain the alcohol away from my factory tank. IMO IMO

Finally I am worried about the factory flaw in S14 fuel tanks, you know the one where they start to leak? I am worried that the only thing holding mine together is the gunk on the bottom of the tank (ha-ha??).

Be very careful because alcohol is powerful and will strip, clean, and potentially corrode (as it will gradually pull in water) many things... unexpectedly... better just to drink alcohol instead usually

you've sold me, ill be making the switch from gasoline to e85 for my parts cleaning bucket