Gasoline Substitute

Basics

• This page goes over Drop In Replacements for (Fossil Fuel Derived) Gasoline
• For more general liquid fuels see Biofuels
• CNG / LNG and LPG are not included as the gas storage, and infrastructure are significant modifications to the Fuel Economy , and thus are not "drop in" replacements

Bio-Butanol

• Butanol is a promising choice
• It doesn't absorb water like Ethanol
• Octane :
• GGE :

Ethanol

• Ethanol is common worldwide, typically as a blend (ie E-85 in the USA etc)
• Brazil has a working "Ethanol Economy" and sells E-100
  • This is most likely due to an excess of sugar due to widespread sugarcane farming
• Supposedly some have a small gasoline tank to help with Cold Starts ?

Methanol

• Methanol has some advantages over Ethanol
• Mainly it is easily made from Syngas via catalysts