Showing posts with label fuel efficiency. Show all posts
Showing posts with label fuel efficiency. Show all posts

Sunday, May 31, 2009

US Fuel Efficiency Standards Too Low?

Last week we discussed the new US fuel efficiency standards that were agreed between the White House, Environmentalists and the Auto Industry. We questioned the concerns of those who suggest that US consumers will not spend extra money on a more fuel efficient car unless the cost of fuel increases and remains high.

Continuing with this topic, we have also heard from the other side of the spectrum that the fuel efficiency standard of 39 mpg for a passenger car to be met in incremental stages before 2016 is too low. Here they may have a point. The average fuel efficiency of all cars, SUVs and minivans in the US is around 23 mpg. In Europe and Japan that figure is over 40 mpg. So if Europe and Japan already produce cars with an average fuel consumption higher than the standard set to be reached in the US by 2016 then why is this standard so low.

While you can buy a few cars in the US that get great fuel economy (Toyota Prius, Honda Civic Hybrid, Mini Cooper, Smart and now the VW Jetta TDI), around 40 mpg, there are not too many and at least 2 of them (the Mini and the Smart) are small cars. One of the reasons Europe in particular has such a good average fuel efficiency is that there are numerous cars that use clean diesel engines. In fact back in 2002 when I (Dudley) Lived in England I drove a VW Golf TDI (diesel) that got about 50 mpg, . In fact diesel engines get at least 30% more fuel efficiency than gas powered engines.

So why do we not have more diesel powered cars in the USA? Diesel engines actually produce less carbon dioxide emissions than gas powered cars but unfortunately they give off other pollutants such as Nitrogen Oxide and other small particulates. In the USA and particularly some states the emission standards are high and the higher sulfur content in US diesel means many diesel engines cannot meet these stricter standards. In Europe this problem is averted because their diesel has a much lower sulfur content than the diesel produced in the USA and therefore gives off less Nitrogen Oxide and particulates. The German engineered cars (Volkswagen, BMW, Mercedes) also seem to be far ahead in producing clean burning diesel engines.

So we know how Europe achieves its 40mpg average fuel efficiency standard with diesel powered cars. We also know that there are less diesel cars in the US because of the concerns with emissions but that the technology is improving quickly and some diesel cars that are now meeting the emissions standards and being sold in the US.

If we take these diesel engines into account in the US, knowing that they can achieve fuel efficiency standards above 40mpg already then the 39 mpg standard set passenger cars by 2016 is really not good enough.

But lets look at this in a different way. Until now very few diesel powered cars have been sold in the US and if standards for gas powered cars was to increase to 39 mpg that would be a reasonable goal. If a smallish gas powered car in 2009 averages 30 mpg, then a 30% increase to 39 mpg over 7 years should be an achievable goal for most car manufacturers.

At http://www.gogreenmug.com/ we would love to see much higher standards but we also expect that once car manufacturers start to improve fuel efficiency there will be no point stopping at 39 mpg, because in the end we know that gas prices will rise and the demand for ever more fuel efficient vehicles will increase. We hope to see a hard drive storage space like evolution in fuel efficiency soon.

Sunday, May 24, 2009

The Case for Raising the Fuel Efficiency of Cars

Last week President Obama announced an agreement between the White House, Environmentalists and the auto industry to increase the average fuel efficiency of passenger cars to 39 mpg. Unfortunately this cannot become the standard overnight or within the next year and the car manufacturers will have until 2016 to meet this standard. None the less it is a great achievement and proves that those of us who care about our environment now have a strong supporter in the White House.

There are always those who will find fault with a policy such as raising the fuel efficiency standards. One that particularly concerns us, suggests that consumers will prefer to buy gas guzzling cars as long as the price of fuel remains in the $2 to $3 range. Therefore although the car manufacturers will build fuel efficient hybrids and electric vehicles, the consumer will still want to buy large V8 SUVs.

We believe most people understand the need for increased fuel efficiency vehicles both for the environment and for economic, political and international stability and will buy more fuel efficient cars, when there is a large selection available. For those who do not buy into the reduce waste and save idea, the US government can always increase taxes on fuel (the US driver still pays less for gas than in most other developed nations) and pay off some of the US national debt.
Let's take a step back here though. The reason we want and need fuel efficient and zero emission cars is not only based on the price of gas at the pump. We all know that right now the Hybrid and Electric cars sell at a premium to their all gas counterparts and there are concerns that the car prices will skyrocket with the fuel efficiency standards. But we are already seeing that new hybrids are causing competition and reducing prices and we imagine that with more hybrids and electric vehicles on offer and increased competition from different car manufacturers the price of a fuel efficient vehicle will not be too different from those of a less efficient vehicle today.

At http://www.gogreenmug.com/ we are all about reducing waste. So what is important to us is that all cars will have better fuel efficiency by 2016 and competition will take care of the prices. Remember though that there are already many cars available that get more than the proposed 2016 standard of 39 mpg. So if you plan to buy a new car before then look out for those with the best Environmental Performance ratings (discussed in a previous post http://gogreenmug.blogspot.com/2009/03/buying-environmentally-clean-car.html), there is no need to wait.

Have a great week and reduce your waste.

Sunday, March 8, 2009

Buying an environmentally clean car

The economic meltdown is causing serious difficulties for most Americans. With our investments and retirement accounts decked out in a very un-festive red, most of us cut back on our spending and reign in our shopping sprees and regular restaurant visits. Of course we could never give up a regular latte, it is the only way to start and end the work day.

According to many knowledgeable sources though, now is the time to invest. Warren Buffet (investing guru of Berkshire Hathaway) is buying shares, home prices are depressed and interest rates are low and car dealerships have great deals.

Maybe now is the right time for us to get a new fuel efficient car. Fuel efficiency is not the only criteria for a cleaner vehicle though, but for most of us finding out what is important and how a car rates environmentally is difficult.

A new law took effect on January 1st 2009 in which all new vehicles manufactured after the 01/01/2009 and sold in California must display an Environmental Performance label. This label shows 2 scores from 1-10. A smog score and a global warming score. The higher the score the cleaner the vehicle.

The Global Warming score is calculated on the greenhouse gas emissions, based on a CO2 equivalent grams per mile. The Smog score calculates the pollutant elements from the vehicle which include non-methane organic gases and nitrogen oxides. These scores are also calculated relative to other vehicles within the same model year. So think of these scores as a sliding scale test.

Battery Electric cars of course get the best scores as well as requiring zero fuel and score 10 for both the smog and global warming. The average new car sold in California has a score of 5 for both. You can get more information on the Environmental Performance label at http://www.driveclean.ca.gov/ep_label.php

California Governor, Arnold Schwarzenegger has been a strong advocate of raising emissions and fuel efficiency standards in California for some time and now President Obama has backed California's strict policies. California wants automakers to build cars that can get an average of 40 miles per gallon by 2020, while federal requirements are asking for 35 miles per gallon.

So there are a few ways we can evaluate the environmental effect of the new car we want to buy. We will look out for the Environmental Performance label and will aim to get a car with great smog and global warming scores. We will look at fuel economy and try to match or beat California's 2020 efficiency standard of 40 mpg. Finally we will make sure we have a cup holder for a GoGreenMug.

Speaking of mugs, remember to let us know about the coffee shops you visit and the discounts they offer you for bringing in your own mug. If you have not done so already also sign up to our cause on Facebook http://apps.facebook.com/causes/196342?m=fa5edc14&recruiter_id=35111682 so that we can build a community and put some pressure on the large chain coffee shops to offer better incentives for using a reusable mug.