What changes in vehicles will be need for the vehicle to run on ethanol?
Answer:
For more than 15%, mostly seals, hoses, and injectors.
im not sure...but it wud seem that for eth, a different valve would be need for the engine to take the energy?
Depends on how big a blend. most carts will run up to 15% with no modification at all.
Most of the major vehicle manufacturers already have engines that will run 100% ethanoel. These have been on sale in Brazil for years
http://www.brookings.edu/dybdocroot/view...
For in between this article covers it pretty well
http://www.esru.strath.ac.uk/eande/web_s...
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