According to CBO's estimates, CAFE standards designed to meet the benchmark 10 percent reduction—about 31.3 mpg for cars and 24.5 mpg for light trucks—would impose costs on producers and consumers of new vehicles totaling approximately $3.6 billion per year, over and above the value of fuel savings (see Summary Table 1 ...
CAFE (Corporate Average Fuel Efficiency/Economy)norms aim at lowering fuel consumption (or improving fuel efficiency) of vehicles. ... CAFE regulations in India came into force from April 1, 2017. Under this, average corporate CO2 emission must be less than 130 gm per km till 2022 and below 113 gm per km thereafter.
The Environmental Protection Agency estimates that the rules will save drivers $8,000 per vehicle and reduce oil consumption by 2.2 million barrels a day, or about half as much as the nation currently imports from OPEC nations.
First enacted by Congress in 1975, the purpose of CAFE is to reduce energy consumption by increasing the fuel economy of cars and light trucks. The CAFE standards are fleet-wide averages that must be achieved by each automaker for its car and truck fleet, each year, since 1978.
The Energy Saving Trust says that the most efficient speed you can travel in a car in terms of achieving the best fuel economy is 55-65mph. Any faster, though, and the fuel efficiency decreases rapidly. For example, driving at 85mph uses 40% more fuel than at 70mph (oh, and it's illegal too).
India's fuel quality standards have been gradually tightened since the mid-1990s. Low lead gasoline was introduced in 1994 in Delhi, Mumbai, Kolkata, and Chennai. On Feb 1, 2000, unleaded gasoline was mandated nationwide. ... The rest of the country allows up to 150 ppm sulfur gasoline and 350 ppm sulfur diesel.
You need to consider your needs, and consider your budget. But with all that being said, a good MPG figure to aim for is anything between 50 and 60MPG. This will ensure that your car is efficient and economical, which means low running costs and car tax rates.
2021 Most and Least Efficient Cars
| Most Efficient Cars by EPA Size Class (excluding electric vehicles) | ||
|---|---|---|
| EPA Class | Vehicle | Combined MPG |
| Midsize | Toyota Prius Eco 1.8 L, 4 cyl, Automatic (variable gear ratios) Hybrid | 56 |
| Large | ||
| Large | Hyundai Ioniq Blue 1.6 L, 4 cyl, Automatic (AM-S6) Hybrid | 59 |
Top 10 ways to improve fuel efficiency
Once these equivalencies are reconciled for each vehicle type, the number of vehicles produced for sale for each model is divided by the number of vehicles produced for sale per model as a percentage of the target. The result is the CAFE standard for each vehicle manufacturer.
2021–2026 Standards
The SAFE rule is less stringent than the Obama-era rule it replaces. That rule would have required automakers to improve fuel efficiency 5 percent annually for model year 2020–2025 vehicles, reaching 46.7 miles per gallon (mpg) by 2025.
NHTSA sets CAFE standards for passenger cars and for light trucks (collectively, light-duty vehicles), and separately sets fuel consumption standards for medium- and heavy-duty trucks and engines. NHTSA also regulates the fuel-economy window stickers on new vehicles.
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