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What is a good CO2 emission for a car?


As concerns about climate change and environmental sustainability grow, many car owners are becoming more conscious of their vehicle's carbon footprint. CO2 emissions are a key factor in determining a car's environmental impact, and understanding what constitutes "good" CO2 emissions can help you make informed decisions about your vehicle and driving habits.


Understanding CO2 Emissions


CO2 emissions refer to the amount of carbon dioxide released into the atmosphere as a result of burning fuel in a car's engine. These emissions are measured in grams of CO2 per kilometer (g/km) and are a major contributor to global warming. The lower the CO2 emissions, the more environmentally friendly the vehicle is.


What is Considered a Good CO2 Emission Level?


The definition of "good" CO2 emissions can vary depending on the type of vehicle and its purpose. However, here are some general benchmarks:



  • Low Emissions: Cars emitting less than 100 g/km of CO2 are considered very environmentally friendly. These include many hybrid and electric vehicles.

  • Moderate Emissions: Vehicles with emissions between 100-150 g/km are considered average for modern cars, particularly small to mid-sized gasoline or diesel vehicles.

  • High Emissions: Cars emitting over 150 g/km are typically larger vehicles, such as SUVs or trucks, and are less eco-friendly.


For reference, many countries have set emission standards to encourage the production and use of low-emission vehicles. For example, the European Union's 2025 target for new cars is an average of 81 g/km of CO2.


How to Reduce Your Car's CO2 Emissions


If you're looking to minimize your car's environmental impact, here are some practical tips:



  • Choose a Fuel-Efficient Vehicle: Opt for hybrid or electric cars, which produce significantly lower emissions compared to traditional gasoline or diesel vehicles.

  • Maintain Your Vehicle: Regular maintenance, such as oil changes, tire pressure checks, and engine tune-ups, can improve fuel efficiency and reduce emissions.

  • Drive Smarter: Avoid aggressive driving, reduce idling, and use cruise control on highways to optimize fuel consumption.

  • Carpool or Use Public Transport: Sharing rides or using public transportation can significantly cut down on individual CO2 emissions.


Conclusion


A "good" CO2 emission level for a car is generally below 100 g/km, but even moderate levels can be acceptable depending on your needs and driving habits. By choosing a fuel-efficient vehicle and adopting eco-friendly driving practices, you can contribute to reducing your carbon footprint and protecting the environment.


Frequently Asked Questions

What is a good CO2 range?


What is an acceptable CO2 level in a room? Normal CO2 levels in fresh air is approximately 400 ppm (part per million) or 0.04% CO2 in air by volume. The table below shows the effects of increased CO2 levels in an enclosed space.



What are normal CO2 emissions?


A carbon footprint is the total amount of greenhouse gases (including carbon dioxide and methane) that are generated by our actions. The average carbon footprint for a person in the United States is 16 tons, one of the highest rates in the world. Globally, the average carbon footprint is closer to 4 tons.



What is a good CO2 rating?


What is an acceptable level of CO2 in a home?

~400 ppmbackground (normal) outdoor air levels
400 - 1,000 ppmtypical levels found in occupied spaces with good air exchange
1,000 – 2,000 ppmlevels associated with complaints of drowsiness and poor air



What is a safe level of CO2 emissions?


The American Conference of Governmental Industrial Hygienists (ACGIH) recommends an 8- hour TWA Threshold Limit Value (TLV) of 5,000 ppm and a Ceiling exposure limit (not to be exceeded) of 30,000 ppm for a 10-minute period. A value of 40,000 is considered immediately dangerous to life and health (IDLH value).



What is a good CO2 level for a car?


CO2 is measured by its weight in grams and for measuring how much a vehicle emits the universal measurement is given in grams per kilometre, so you'll see g/km when looking at CO2 levels. In the UK the current target is 95 g/km.



What is the average CO2 emissions for a car?


What is the average annual carbon dioxide (CO2) emissions of a typical passenger vehicle? A typical passenger vehicle emits about 4.6 metric tons of CO2 per year. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.2 miles per gallon and drives around 11,500 miles per year.



What is good car CO2 emissions?


If you want to understand what is considered high or low in terms of petrol/diesel/hybrid emissions, here is a rough guide: 150g/km is considered low. 160 to 255g/km is considered medium. Above 255g/km is considered high.



What should CO2 emissions be?


Globally, the average carbon footprint is closer to 4 tons. To have the best chance of avoiding a 2℃ rise in global temperatures, the average global carbon footprint per year needs to drop to under 2 tons by 2050.



What is the CO2 limit for cars?


The targets that will apply from 2025 onwards are based on the WLTP (Worldwide harmonized Light vehicles Test Procedure) and were set out in Commission Implementing Decision (EU) 2023/1623 : Cars: 93,6 g CO2/km (2025-2029) and 49,5 g CO2/km (2030-2034) Vans: 153,9 g CO2/km (2025-2029) and 90,6 g CO2/km (2030-2034)



What level of CO2 is acceptable?


400-1,000 ppm
General indoor environments: In indoor settings, a CO2 concentration of 400-1,000 ppm is considered acceptable. This range is commonly used as a guideline for maintaining good indoor air quality in homes, offices, and public spaces.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.