1984 Rolls-Royce Silver Spirit/Spur/Mulsanne MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne.
The 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne has 2 model options: Automatic 3-spd 8-cyl, 6.8 L and Automatic 3-spd 8-cyl, 6.8 L.
The 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Automatic 3-spd 8-cyl, 6.8 L runs on regular gasoline and is in the Midsize Cars car class.
The 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Automatic 3-spd 8-cyl, 6.8 L runs on regular gasoline and is in the Midsize Cars car class.
🛣 How Many Miles per Gallon (MPG) Does a 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Get?
Across all models, the combined average MPG for the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne is 9 miles per gallon.
The table below breaks down the MPG for each model option:
| Model Option | Combined MPG | City MPG | Highway MPG |
|---|---|---|---|
| Automatic 3-spd 8-cyl, 6.8 L | 9 | 8 | 10 |
| Automatic 3-spd 8-cyl, 6.8 L | 9 | 8 | 10 |
💵 What is the Average Yearly Fuel Cost for a 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne?
The average fuel costs for all models of the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne is $6,950.
The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
Comparing a 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne to an average vehicle over 5 years, you will spend $23,250 more on fuel.
The table below shows the fuel costs and 5-year save/spend for each model option:
| Model Option | Fuel Cost | 5-Year Save/Spend |
|---|---|---|
| Automatic 3-spd 8-cyl, 6.8 L | $6,950 | spend $23,250 more |
| Automatic 3-spd 8-cyl, 6.8 L | $6,950 | spend $23,250 more |
The 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne is also subject to the Gas Guzzler Tax, which is a federal tax on vehicles that has a combined MPG of less than 22.5.
The tables below show how much you can expect to pay in Gas Guzzler taxes.
| Model Option | Gas Guzzler Tax |
|---|---|
| Automatic 3-spd 8-cyl, 6.8 L | $7,700 |
| Model Option | Gas Guzzler Tax |
|---|---|
| Automatic 3-spd 8-cyl, 6.8 L | $7,700 |
🛢 How Many Barrels of Petroleum Does a 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Consume?
Across all models, the average number barrels of petroleum that the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne will consume in one year is 33 barrels.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
| Model Option | Barrels |
|---|---|
| Automatic 3-spd 8-cyl, 6.8 L | 33 |
| Automatic 3-spd 8-cyl, 6.8 L | 33 |
💨 How Many Grams of CO2 Does a 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Emit?
The 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne will emit an average of about -15,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne.
Overview
The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 2 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne model options.
Automatic 3-spd 8-cyl, 6.8 L
The table below contains all of the details we have for the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Automatic 3-spd 8-cyl, 6.8 L:
| City MPG | 8 |
|---|---|
| Highway MPG | 10 |
| Combined MPG | 9 |
| Save/Spend vs Average Car | Spend $23,250 |
| Gas Guzzler Tax | $7,700 |
| Fuel Cost | $6,950 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 33 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Cylinders | 8 |
| Displacement | 6.8 |
| Transmission | Automatic 3-spd |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Automatic 3-spd 8-cyl, 6.8 L
The table below contains all of the details we have for the 1984 Rolls-Royce Silver Spirit/Spur/Mulsanne Automatic 3-spd 8-cyl, 6.8 L:
| City MPG | 8 |
|---|---|
| Highway MPG | 10 |
| Combined MPG | 9 |
| Save/Spend vs Average Car | Spend $23,250 |
| Gas Guzzler Tax | $7,700 |
| Fuel Cost | $6,950 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 33 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Cylinders | 8 |
| Displacement | 6.8 |
| Transmission | Automatic 3-spd |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/rolls-royce/silver-spirit-spur-mulsanne/1984">1984 Rolls-Royce Silver Spirit/Spur/Mulsanne MPG and Fuel Economy</a>
"1984 Rolls-Royce Silver Spirit/Spur/Mulsanne MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/rolls-royce/silver-spirit-spur-mulsanne/1984.
"1984 Rolls-Royce Silver Spirit/Spur/Mulsanne MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/rolls-royce/silver-spirit-spur-mulsanne/1984. Accessed January 3, 2026.
1984 Rolls-Royce Silver Spirit/Spur/Mulsanne MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/rolls-royce/silver-spirit-spur-mulsanne/1984.