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.
The cetane number is a measure of a fuel´s tendency to ignite in the absence of an ignition source (flame or spark).
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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