1994 Cadillac Seville Owner's Manual - Page 260

- The test used to determine me city fuel economy estimate simulates a 7.5 mile (12 km),stop and go trip with an average speed of 20 mph (32 km/h). The trip takes 23 minutes and has 18 stops. About one fifth of the time is spent idling, as in waitingat traffic lights or in rushhour traffic. Two kinds of engine starts areused: a coldstart, which is similar to starting a car in the morning after it has been parked all nightand a hot start, which is similar restarting a vehicle after it has been warmed up, to driven and stopped for a short time. The test used to determine thehighway fuel economy estimate represents a mixtureof "non-city" driving. Segments corresponding to different kinds of rural roads and interstate highways are included. The test simulates a 10 mile (17km) trip with an average speed of 48 mph (77 km/h). The test is run from a hot start and has little idling time and no stops. To assure that thefuel economy numbers are most usefulfor consumers, the EPA adjusts these laboratory test results to account for the difference between controlled laboratory conditions and actual driving on theroad. The laboratory fuel economy results are adjusted downward to arrive at and the estimates on thefuel economy window sticker the GasMileage Guide. The city estimate is loweredby 10 percent and the highway estimate is loweredby 22 percent from the laboratory test results. Experience has proven that theseadjustments make the mileage estimates correspond more closely to theactual fuel economy realized by the average driver. Even though these figures are adjusted, they stillrepresent what the average driverwill get. Your fuel economy may significantly higheror be lower, depending on how, when,and where your vehicle is driven. Here are some things you can toincrease fuel economy; do Combine errands into onetrip. Turn the engine off rather than letting it idle for more than a minute. Have your Cadillac serviced asdescribed in the maintenance booklet. Keep tires inflated to recommended pressures. 0 Anticipate traffic stops. 247