Song for Jasmine

I get free petrol this month. In fact, I expect to get free petrol every December from now on. I didn’t win the lottery, and I don’t have a company car, so how do I manage it?

About a year ago I read some articles on the web about how driving differently can reduce petrol consumption, with all the benefits that entails. I hadn’t thought about it much until then, but I decided to give it a go. Now I find I can travel about 8 or 9% further than before for the same amount of petrol.

That may not sound like a lot, but one month is 8.3% of a year, so as I see it, my petrol is free this month. I think I’ll use some of the money to take Dweezeljazz out to dinner.

There are several pages on the web now that discuss driving economically. There’s one from the BBC which has a graph of CO2 emissions versus speed. It shows that the most fuel-efficient speeds for driving are about 35-50 mph (60-80 kph).

There’s a more detailed BBC article and an an article in French that discuss the same topic. Between them, they make a number of suggestions

• drive smoothly, accelerating and braking gently
• remove the roof-rack and any excess weight
• check your tyre pressure
• change your air filter regularly
• don’t leave the engine idling unnecessarily
• change gear early, maintain constant speeds when possible
• use engine-braking rather than your foot. Modern cars will reduce the petrol injection when engine-braking
• opening the windows or using the air-conditioning will increase consumption
• know your route, to avoid unnecessary use of the car
• avoid unnecessary trips, especially short ones which don’t give the engine time to warm up

Driving economically not only saves petrol, it also reduces wear and tear on the car in general. It reduces your emissions of greenhouse-gasses and other pollutants, and makes the roads safer for pedestrians and other road-users.

Driving economically is one thing, but the last two points in the list above address the issue from a different perspective, consuming less petrol by avoiding use of the car. There are other ways to do that too, such as car-pooling, or sharing a shopping trip with a friend or neighbour. If you work flexible hours you may be able to adopt a schedule that avoids you getting caught in rush-hour traffic.

There’s another way to save petrol with the car, that’s to not drive it all the way to where you’re going. Instead of driving to my office, I now park my car over a kilometre away and walk the rest of the distance. It adds 15 minutes to my journey, but I get a lot of good exercise in the process. Getting that exercise by other means would undoubtedly take more time than that out of my day. Instead of just walking along the road, I have a route from the car to the office which avoids traffic, so I’m not breathing so much vehicle pollution. It’s not flat either, so I get even more exercise from the steps I climb up and down every day.

It’s actually a very pleasant walk, I get to see many interesting things on the way. All the photographs in this post were taken on that walk at one time or another. I get to see things like this daily, but I wouldn’t see them at all if I simply drove all the way to my office.

According to the BBC, driving economically can reduce petrol consumption by 10-15%. Apparently, Ford themselves believe people could reduce their consumption by up to 25%. I know I could try harder, and maybe, if I do, I will have free petrol earlier next year.

I’d like that, Dweezeljazz and I know a number of good restaurants nearby.

(Possibly) related posts:

1. Free Petrol? Free Pizza!
2. Heatwaves, Pollution, and Money to Burn

Tags: Dweezeljazz, Hypermiling, Petrol

Posted by Tony on Thursday, December 11th, 2008 at 22:53 in Pollution, Climate change, Economise. You can follow any responses to this entry here via RSS 2.0. You can leave a response, or trackback from your own site.