Harnesses rated for E85 compatibility use ethanol-safe materials

https://telegra.ph/Deciphering-LS-Swap-Harnesses-How-to-Pick-Customize-and-Install-the-Right-Electrical-Wiring-Loom-for-Your-Build-03-18

Harnesses rated for E85 compatibility use ethanol-safe materials, supporting flex-fuel conversions without premature wire degradation.