UPS is adding 1000 alternative fuel trucks to it's fleet using propane. (UPS trucks are run on spark-ignited gasoline engines) DME is a replacement fuel for diesel, not spark ignited engines.
Diesel trucks will be doing the same thing with DME. DME logistics will be the same as propane (LPG)
UPS now has experience and success and a commitment to a fuel with every similarity to DME. it should, as things move forward, expand its clean fuel committment by using DME in it's long haul diesel trucks. IMHO
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