The Buick Skylark does 21.8 mpg combined (18.7 city, 27.3 highway), which works out to about $1,761 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 2.5L 4-cyl does 24 mpg while 3.3L 6-cyl does 20 — a difference of $320 a year. Against other 4-cyl cars it sits below the average of 25.4 mpg.
Every Buick Skylark engine, compared
Picking the right version of the same car often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.5L 4-cyl | 20.5 / 29.5 | 1984–1985 | $1,600 | |
| 2.3L 4-cyl | 20 / 29.1 | 1988–1995 | $1,641 | |
| 2.4L 4-cyl | 19 / 29.3 | 1996–1998 | $1,670 | |
| 3.1L 6-cyl | 17.8 / 26.4 | 1994–1998 | $1,846 | |
| 2.8L 6-cyl | 17.5 / 24 | 1984–1985 | $1,920 | |
| 3L 6-cyl | 17 / 24 | 1988–1988 | $1,920 | |
| 3.3L 6-cyl | 17.6 / 25.2 | 1989–1993 | $1,920 |
What that actually costs
Miles per gallon is an abstraction; the fuel bill is not. Here it is in money, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Cost per mile | $0.147 |
| Fuel per year | $1,761 |
| Fuel over five years | $8,805 |
| Against other 4-cyl cars | +$249 a year |
| EPA's own estimate | $2,862 a year |
City or highway — who is this car for
The gap between city and highway figures tells you whom the car suits. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 18.7 mpg | $2,053 a year if you only drive in town |
| Highway | 27.3 mpg | $1,407 a year if you mostly commute |
| Gap | +8.6 mpg (46%) | Wide — this car dislikes traffic |
How the Skylark changed over the years
Combined figure by model year. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 1998 | 18.5 / 28.5 | 2 | $1,745 | |
| 1997 | 18.5 / 27.5 | 2 | $1,745 | |
| 1996 | 18.5 / 28 | 2 | $1,745 | |
| 1995 | 18 / 27 | 2 | $1,829 | |
| 1994 | 18.5 / 27.5 | 2 | $1,745 | |
| 1993 | 18.5 / 27.5 | 2 | $1,745 | |
| 1992 | 18.5 / 27.5 | 2 | $1,786 | |
| 1991 | 19 / 27 | 2 | $1,786 | |
| 1990 | 19 / 26.5 | 2 | $1,786 | |
| 1989 | 19.5 / 27 | 2 | $1,745 | |
| 1988 | 19 / 27.5 | 2 | $1,707 | |
| 1985 | 19.5 / 27.5 | 2 | $1,707 | |
| 1984 | 18.5 / 26 | 2 | $1,786 |
MPG is a number. Dollars per year is the answer.
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How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What mpg does the Buick Skylark get?
21.8 mpg combined on average — 18.7 in the city and 27.3 on the highway, per EPA ratings across 1984–1998.
How much does a Buick Skylark cost in fuel per year?
About $1,761 at 12,000 miles and $3.20 a gallon — roughly $8,805 over five years, or 0.147 dollars a mile.
Which Skylark engine is the most economical?
The 2.5L 4-cyl at 24 mpg, against 20 for the 3.3L 6-cyl — a difference of about $320 a year.
Is the Skylark good on fuel compared with similar cars?
Against other 4-cyl cars it sits below the average of 25.4 mpg, computed across 6877 ratings.
Are these real-world figures?
No — they are EPA laboratory ratings, the same ones on the window sticker. Real consumption depends on driving style, terrain, load and weather, and is typically a little worse.