The origina EPA estimates were 16 mpg city and 22 highway for a 1985 model year 5th Avenue. The EPA has since revised all of their mileage figures. The new mileage figures are 15 city and 20 highway.
It's interesting to compare the 5th Avenue's mileage figures with the 1985 Diplomat POLICE car's mileage. (The civilian and police cars are rated separately) The EPA's original estimates for the police car were: 13 mpg city and 15 mpg highway. The EPA's revised figures are: 11 mpg city and 14 highway.
The civilian Diplomat's mileage ratings are identical to the 5th Avenue. So the question is why did the police Diplomat use so much more fuel than the civilian cars?
