I have an 89 Buick electra park avenue, and I have averaged 23.3 over the last 2 weeks, using the air conditioning, and with a fair amount of in-town driving, but probably 80% highway driving.
12 miles per gallon
Depending on the year it can get approximately 17-19 miles per gallon city and 23-26 miles per gallon highway.
Need to now
about 40 million miles to the gallon so you only have to fill it up once
17 city 26 highway
275,000 on my 2000 Park Avenue. Runs as good as ever.
19 city 30 highway.
When looking into owning a gas mileage is an important factor. The gas mileage for a 1983 Buick Lesabre is 17 miles per gallon city and 24 miles per gallon highway.
The curb weight of a 1998 Buick LeSabre with a 3.8 liter, V-6 engine is 3,437 pounds. This car gets 19 miles per gallon in the city and 30.1 miles per gallon on the highway.
I GOT 26 18 city, 26 hwy
Mine gets ~28 mpg mostly highway driving
i get 20mpg in town and stil 30 mpg on the highway and have over 150,000 miles on this car. good car