2001 Chevrolet Cavalier (Bi-fuel CNG): MPG and fuel economy
The 2001 Chevrolet Cavalier (Bi-fuel CNG) is rated by the U.S. Environmental Protection Agency at 23 combined MPG, with 20 MPG in the city and 28 MPG on the highway. That sits a little above the average car in the Subcompact Cars class for the same model year.
This page collects every fuel-economy figure the EPA publishes for the 2001 Chevrolet Cavalier (Bi-fuel CNG). Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- The most efficient car in the Subcompact Cars class for the 2001 model year is the Honda Civic HX at 32 MPG.
- EPA estimates this car costs around $2,250 more in fuel over five years than an average new vehicle of the same model year.
Fuel economy at a glance
These are the EPA's official ratings for the 2001 Chevrolet Cavalier (Bi-fuel CNG). The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 23 MPG |
| City MPG | 20 MPG |
| Highway MPG | 28 MPG |
| Annual fuel cost | $2,600 |
| Tailpipe CO₂ | 386 g/mi |
| Fuel type | Gasoline or natural gas |
How the 2001 Chevrolet Cavalier (Bi-fuel CNG) compares
The 2001 Chevrolet Cavalier (Bi-fuel CNG) returns 23 combined MPG. Cars in the Subcompact Cars class for the same model year average 20.6 MPG, which puts this car ahead of the class average by about 12%.
The most efficient car in the Subcompact Cars class for the 2001 model year is the Honda Civic HX at 32 MPG. The bar chart below puts the Chevrolet Cavalier (Bi-fuel CNG) alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 2001 model year (across all classes) returns 19.1 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2001 model year is on its own page.
Annual fuel cost across driving patterns
The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for compressed natural gas, which is $2.96/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.
The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 652.2 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $1,300 |
| Average driver, 15,000 miles per year | $2,600 |
| Heavy driver, 25,000 miles per year | $4,333 |
Year-over-year MPG for the Chevrolet Cavalier (Bi-fuel CNG)
The EPA has rated the Chevrolet Cavalier (Bi-fuel CNG) across 2 model years, from 2000 Chevrolet Cavalier (Bi-fuel CNG) through 2001 Chevrolet Cavalier (Bi-fuel CNG). The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
Combined MPG has stayed in roughly the same range across the run, hovering close to 23 MPG.
| Year | Combined MPG | Open year page |
|---|---|---|
| 2001 | 23 MPG | this page |
| 2000 | 22 MPG | 2000 Chevrolet Cavalier (Bi-fuel CNG) |
Compare against other Subcompact Cars for 2001
If you are cross-shopping the 2001 Chevrolet Cavalier (Bi-fuel CNG), the most useful comparison is against the other cars in the Subcompact Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
The Volkswagen New Beetle leads this group at 38 MPG, 15 MPG ahead of the 2001 Chevrolet Cavalier (Bi-fuel CNG).
Specifications
The 2001 Chevrolet Cavalier (Bi-fuel CNG) runs a 2.2-liter 4-cylinder engine paired with a automatic 4-spd, sending power through front-wheel drive.
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Subcompact Cars
- Engine
- 2.2L 4-cylinder
- Transmission
- Automatic 4-spd
- Drivetrain
- Front-Wheel Drive
- Fuel type
- Gasoline or natural gas
- Annual petroleum use
- 12.9 barrels per year
Common questions about the 2001 Chevrolet Cavalier (Bi-fuel CNG)
Quick answers to the questions people most often search for when looking up the 2001 Chevrolet Cavalier (Bi-fuel CNG).
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Is the 2001 Chevrolet Cavalier (Bi-fuel CNG) fuel efficient?
Yes. The 2001 Chevrolet Cavalier (Bi-fuel CNG) returns 23 combined MPG, which beats the average car in the Subcompact Cars class for the same model year by about 12%. -
What MPG does the 2001 Chevrolet Cavalier (Bi-fuel CNG) get?
The EPA rates the 2001 Chevrolet Cavalier (Bi-fuel CNG) at 23 combined MPG, 20 MPG in city driving, and 28 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 2001 Chevrolet Cavalier (Bi-fuel CNG) per year?
The EPA estimates an annual fuel cost of $2,600 for the 2001 Chevrolet Cavalier (Bi-fuel CNG). That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
What fuel does the 2001 Chevrolet Cavalier (Bi-fuel CNG) use?
The EPA lists the 2001 Chevrolet Cavalier (Bi-fuel CNG) as running on regular gasoline. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity. -
How much CO₂ does the 2001 Chevrolet Cavalier (Bi-fuel CNG) emit?
Tailpipe CO₂ emissions are 386 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 5,796 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 2001 Chevrolet Cavalier (Bi-fuel CNG)?
City driving returns 20 MPG and highway driving returns 28 MPG, a gap of 8 MPG. A spread that wide is typical of cars with conventional automatic or manual transmissions, where stop-start city traffic eats more fuel than a steady highway cruise. -
What engine is in the 2001 Chevrolet Cavalier (Bi-fuel CNG)?
The 2001 Chevrolet Cavalier (Bi-fuel CNG) has a 2.2-liter 4-cylinder engine. -
What transmission and drivetrain does the 2001 Chevrolet Cavalier (Bi-fuel CNG) have?
The 2001 Chevrolet Cavalier (Bi-fuel CNG) comes with a automatic 4-spd transmission and front-wheel drive. -
How does the 2001 Chevrolet Cavalier (Bi-fuel CNG) compare to the best car in its class?
The most efficient car in the Subcompact Cars class for the 2001 model year is the Honda Civic HX at 32 combined MPG. The Chevrolet Cavalier (Bi-fuel CNG) returns 23 MPG, a gap of 9 MPG. If you are comparing on fuel economy alone, the class leader is worth a look. -
How much more does the 2001 Chevrolet Cavalier (Bi-fuel CNG) cost in fuel compared to an average car?
The EPA estimates that over five years, the 2001 Chevrolet Cavalier (Bi-fuel CNG) will cost about $2,250 more in fuel than an average new vehicle of the same model year. The difference accumulates because the car uses more fuel per mile, not because of any one-off charge at the dealership.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.