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.
The use of cetane improver also helps to maintain acceptable fuel mileage.
For instance, the Turnpike Traveler page offers an interactive travel map, and a Toll/Mileage calculator.
Your Palm Powered PDA and the Rand McNally Mileage Calculator deliver half a million mileages between hundreds of cities and attractions.
The strongest selling point to choosing the TDI Beetle over the other trim lines was that the gas mileage was out of this world!
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