Quote:
Originally Posted by Shankenstein
Bringing it back to facts:
304 Stainless, 6061 Aluminum, and their oxide surface layers are safe for use in E85.
** Appendix B (page 39) of this paper by the Renewable Fuels Foundation shows the list of materials that were soaked in ethanol for 30 days at 110 degF and showed NO decrease in mass when compared to identical gasoline testing.
LINK to PDF
Metals:
Aluminum alloy
Magnesium alloy
Copper
Zinc
Carbon steel
Cartridge brass
Aluminum bronze
Stainless steel
Aluminum alloy (cast)
Iron (cast)
Zinc alloy (cast)
Terne plate |
interesting, a couple of notes
1.) I didn't see paper or cellulose in there.
2.) Their list of metal (quoted) seems like BS, they have aluminum alloy as one simple line...I have a problem with that , there are dozens if not hundreds of grades of Aluminum, and all are alloys...Pure aluminum is nearly useless for most applications.
3.) They state 6061 and it's oxide layer are suitable for E-85? yet Aluminum must be plated before use in gas stations? 6061 is the most readily available and widely used alloy of Aluminum that I can think of only Al 356 comes close (casting alloy)
4.) Did they maintain the concentration of ethanol somehow, was it constantly replenished? Ethanol (or most alcohols) are hygroscopic, they will absorb their own weight in Water given enough exposure to the humidity in the air. and Ethanol at 110f doesn't hand around very long, the rate of evaporation is pretty substantial in that condition
5.) it is common knowledge (in some circles) that you must anodize Al fuel lines for use in a E-85 application due to the increased risc of corrosion due to the water holding abilities of E-85
What say yee?