Fuel efficiency
Monday, June 23rd, 2008Last week we talked about hypermiling, a set of techniques to help you optimize your gas mileage. This week I want to take a closer look at some of these fuel saving suggestions to see if these practices actually work.
At a recent “Hybridfest”, the annual event that puts into practice gas saving techniques, a standard Honda Accord was able to get 21.7 km/l as opposed to its official fuel-efficiency rating of 10.2 km/l (city) and 14.4 km/l (highway). Impressive!!
So this past week I have been trying some of these techniques to see if there has been any difference in my fuel efficiency.
One suggestion is to travel at or below the speed limit. I generally don’t speed so that’s not an issue for me, but in this city I would feel as if I were taking my life in my hands if I were to travel below the speed limit. This technique would definitely anger and frustrate other drivers.
Another suggestion is to avoid rapid starts and stops so I have been trying to slow down as I approach red lights and stop signs. The new countdown lights at most city intersections really help in this regard. Apparently, studies show that you can use from 5 to 30 per cent less gas depending of course on variables such as type of vehicle. So not exceeding the speed limit and avoiding “hard driving” are by far two of the best gas saving techniques there are.
Also, if your car comes equipped with cruise control you should use it for highway driving since research shows it can offer an average fuel economy savings of 7 per cent.
My mom suggested that you should put your seatbelt on before you start your car so you can just start up and go. This is true but I still like to give my car a few seconds to warm up a bit. It does bring up another point though. If you’re going to be idling for a while, just turn the engine off. Contrary to popular belief, having to restart your car isn’t worse for your fuel economy than if you’re going to idle for longer than one minute. At fast food places it might also be a good idea to skip the drive-through, park, and go in to place your order.
Another popular gas-saving technique we talked about last week was the practice of cruising downhill in neutral. Apparently this doesn’t help save gas because coasting with your foot off the gas uses the same amount of fuel. It is also a dangerous practice since the vehicle can really speed up very quickly. This might be one reason why coasting downhill in neutral is illegal in many areas.
There are just too many gas-saving ideas and myths to cover here today so next week we’ll take a look at some other techniques and suggestions, like driving with your windows closed, to see if that really does help save fuel.
By the way, I have seen no difference in my liter per kilometer ratio but I will continue to try and alter my driving and I’ll let you know if I notice any changes by next week.