Guster, Singh promote green, Oil companies criticized for lack of ethanol pumps

Guster, Singh promote green
MSU State News - East Lansing,MI,USA
For the last year, city staff has fueled East Lansing's diesel-powered machines with biodiesel — which blends normal diesel fuel with an alternative made ...
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Oil companies criticized for lack of ethanol pumps
Reuters - USA
... scrutiny from US politicians who want to know if the firms restrict service stations from selling gasoline made mostly from ethanol and biodiesel blended motor ...