Fuel having a high ´natural´ cetane number obtained through high energy paraffin content may provide better fuel mileage than lower energy fuel or fuel with poor natural burning characteristics plus a cetane improver, if ambient temperatures are adequate to prevent gelling of the high paraffin fuel.
Because of spikes in gas prices, even more businesses are looking for wiggle room on their mileage rates, said Allenstein, who advises employers in Wisconsin, Minnesota, Michigan, Indiana and Ohio.
By using a directly-injected stratified charge, it was supposed to be the answer to the automobile´s double whammy of emissions controls and fuel mileage requirements.
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