The Rolls-Royce Silver Spur does 10.3 mpg combined (8.8 city, 12.1 highway), which works out to about $3,728 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 6.7L 8-cyl does 12 mpg while 6.8L 8-cyl does 10.1 — a difference of $602 a year. Against other V8 cars it sits below the average of 16.1 mpg.
Every Rolls-Royce Silver Spur engine, compared
Gas mileage on the Rolls-Royce Silver Spur ranges from 12 down to 10.1 depending on which engine sits under the bonnet — a spread of $602 a year across 2 versions of the same car. Picking the right one 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 |
|---|---|---|---|---|
| 6.7L 8-cyl | 10 / 15 | 1998–1998 | $3,200 | |
| 6.8L 8-cyl | 8.7 / 11.9 | 1984–1999 | $3,802 |
What that actually costs
The Rolls-Royce Silver Spur burns a gallon every 10.3 miles, so 12,000 miles takes about 1165 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.311 |
| Fuel per year | $3,728 |
| Fuel over five years | $18,640 |
| Against other V8 cars | +$1,343 a year |
| EPA's own estimate | $7,003 a year |
City or highway — who is this car for
The Rolls-Royce Silver Spur gives up 3.3 mpg the moment you leave the motorway — 12.1 out there against 8.8 in town, a 37% drop worth $1,190 a year. 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 | 8.8 mpg | $4,364 a year if you only drive in town |
| Highway | 12.1 mpg | $3,174 a year if you mostly commute |
| Gap | +3.3 mpg (37%) | Wide — this car dislikes traffic |
How the Silver Spur changed over the years
The Silver Spur peaked in 1999 at 12 mpg (10 city, 15 highway) and was at its thirstiest in 1986 at 8 — 4 mpg apart, or $1,600 a year in fuel between buying one year and the other. The 1999 car does 12. 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 |
|---|---|---|---|---|
| 1999 | 10 / 15 | 1 | $3,200 | |
| 1998 | 10 / 15 | 1 | $3,200 | |
| 1997 | 10 / 15 | 1 | $3,200 | |
| 1996 | 10 / 14 | 1 | $3,200 | |
| 1995 | 9 / 14 | 1 | $3,491 | |
| 1994 | 9 / 13 | 1 | $3,491 | |
| 1993 | 9 / 13 | 1 | $3,491 | |
| 1992 | 9 / 13 | 1 | $3,491 | |
| 1991 | 9 / 12 | 1 | $3,840 | |
| 1990 | 9 / 12 | 1 | $3,840 | |
| 1989 | 9 / 11 | 1 | $3,840 | |
| 1988 | 8 / 10 | 1 | $4,267 | |
| 1987 | 8 / 10 | 1 | $4,267 | |
| 1986 | 7 / 9 | 1 | $4,800 | |
| 1985 | 7 / 9 | 1 | $4,800 | |
| 1984 | 7 / 9 | 1 | $4,800 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 16 EPA ratings of the Rolls-Royce Silver Spur — 2 engines across 1984–1999. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $7,003. Full method.
Frequently asked questions
What mpg does the Rolls-Royce Silver Spur get?
10.3 mpg combined on average — 8.8 in the city and 12.1 on the highway, per EPA ratings across 1984–1999.
How much does a Rolls-Royce Silver Spur cost in fuel per year?
About $3,728 at 12,000 miles and $3.20 a gallon — roughly $18,640 over five years, or 0.311 dollars a mile.
Which Silver Spur engine is the most economical?
The 6.7L 8-cyl at 12 mpg, against 10.1 for the 6.8L 8-cyl — a difference of about $602 a year.
Is the Silver Spur good on fuel compared with similar cars?
Against other V8 cars it sits below the average of 16.1 mpg, computed across 3323 ratings.
Are these real-world Silver Spur figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Rolls-Royce Silver Spur is $7,003 against the $3,728 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 12 and 8 mpg versions of this car is smaller than the spread between two drivers of the same one.
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