Originally Posted By: Shup1
Just don't pour some containers from the grovcery store in the fuel tank....you'll regret it!
That's not really true. The 90% stuff burns great in engines, and acts as a cleaning/drying agent. I have in the past dumped a bottle of it in a near empty gas tank on my Jeep because I was afraid I couldn't make it to the station...it ran great.
Recently I had some bad gas in my lanwmower, so I added about 50% rubbing alcohol to the tank so it would start and I could burn it all. Right after that tank I disassembled the engine (already planned) and found the exhaust valve 100% clean, while the intake valve was covered in crust. The alcohol must have cleaned the exhaust valve. Also the thick layer of carbon on the head and piston was starting to flake off very easily, another result of the alcohol.
The point is, even if it does have 10% water it still works fine in most engines in some mix or another. You won't "regret" it. I would not however do the same thing with 70% rubbing alcohol.
But no, as straight fuel, IPA won't make much financial sense.