Quote:
Originally Posted by Fueltesters
- High levels of alcohol damages engine parts and increases risk of water absorption.
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DURABILITY OF VARIOUS PLASTICS: ALCOHOLS VS. GASOLINE
.................................................. ..........Ethanol........Methanol........Gasoline
Conventional Polyethylene...................good...........exce llent...........poor
High-density Polyethylene..................excellent.......exce llent...........good
Teflon............................................ ......excellent.......excellent........excellent
Tefzel............................................ ......excellent........excellent.......excellent
Polypropylene..................................... ..good............excellent...........fair
Polymethylpentene...............................go od............excellent...........fair
Polycarbonate..................................... ..good.................fair...............fair
Polyvinyl Chloride..................................good.... .............fair..............poor
Excellent: Will tolerate years of exposure.
Good: No damage after 30 days of exposure, should tolerate several years of exposure.
Fair: Some signs of deterioration after one week of exposure.
Poor: Deteriorates readily.
NOTE: All tests were made with liquids at 122 deg F.
Additionally, it was mandated many years ago that the rubber used in fuel systems can take up to 50% alcohol in the fuel.
Isn't water absorption a good thing? If I got water into my tank I would pour alcohol in there to absorb the water so it can pass through the fuel system instead of clogging stuff up. It's not like it absorbs water and then tosses it to the bottom of your tank to pool up.
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