Consumerism transport

What if petrol prices doubled?

I’ve written before about peak oil, when oil production peaks and then starts to decline, getting more and more expensive. There are various predictions around the place, but many seem to agree it’s going to hit this decade.

Some argue it’s already hit, and only the Global Financial Crisis dampening demand has masked it.

What would happen if petrol prices doubled?

Preposterous!, you might think. But it’s already happened.

Melbourne metro petrol prices: average 1998-2010
Melbourne metro average unleaded petrol price 1998-2010
(Source: Australian Automobile Association)

Here’s how petrol prices have looked since 1998. It’s easy to forget it, but we’re currently sitting at just on double the price back in 1998.

And as you can see, the trend line is quite definitely pointing upwards.

And that’s including the downward pressure from the removal of indexation on fuel excise in 2001.

(The graph is not adjusted for inflation. According to the RBA’s inflation calculator, from 1998 to 2009, inflation was 38.6%.)

So anyway, next time you’re thinking about buying a car, or moving house, or one of those longterm decisions that will impact how much you drive, and how much petrol you use, be sure to consider: what if petrol hits $2.50 or $3 per litre or even more in the next 5-10 years?

11 replies on “What if petrol prices doubled?”

When I was involved in motor sport 25 years ago, most competitors looked for ways to make engines more efficient so we could get more power and torque. This didn’t do much for fuel economy in competition, but the refinements in fuel feed, induction, exhaust and timing systems that we all would sell our souls for, and that had to be grafted onto our standard cars at great personal expense can now be had on the smallest, cheapest, most “bog standard” cars off the showroom floor.


Because when those systems are properly tuned and managed they *will* provide astonishing increases in fuel efficiency. In fact, the newest cars on the market can achieve fuel consumption figures almost twice as good as those from 20 years ago – 7 litres / 100 Km vs 25 miles / gallon (the units are mixed, I know, but I’m sure someone can standardise them).

So the first reaction to rising fuel prices is obviously to make engines that use fuel more frugally so the overall cost doesn’t “run away” too quickly …

Yeah, in a funny way I like it when petrol prices go up and it means we (family of four) save even more by only having one car. Almost all our friends have two or more cars.
Note also that gas and electricity prices have increased much faster than inflation.

I remember very well paying only 53 c/L when I first got my licence (1994). Back then my 855 kg Laser with a carburettor engine was doing 10 L/100 km which I was able to cut to less than 9 L/100 km by using premium fuel. Then my medium sized Telstar with an elaborate EFI engine struggled to get better than 10.5 L/100 km.

I’m now very impressed that our 2040 kg XC90, with two adults and four children on board and questionable aerodynamics, can still manage 11.5 L/100 km. It would be even better if it ran on diesel instead of petrol.

Still not as good as a 68 tonne B-double though, using about 35-40 L/100 km.

The people who build engines have done marvellous work in the last 30 years.

Interesting that you’d choose to focus on every day consumers? What about bus companies, what would it mean for them? Is it time to electrify buses in inner city areas like overseas?

In Taiwan I’m paying roughly $1 AUD a litre. No idea where Taiwan’s petrol comes from but population wise it’s roughly the same as Australia.

Loving riding around on my scooter popping 5L/150-170km.

Just for comparison, I usually fill up at my local Sainsbury’s (supermarket) petrol station because it has the cheapest petrol.

It’s currently about 2 – 4p / litre below average and I paid GBP 1.10 / litre yesterday (which apparently equates to AUD 1.82 / litre.

I travel a lot and have in the last year or so made a very determines attempt to use public transport much more than before. This is a patchy policy. sometimes I can’t achieve the journey by PT; sometimes it’s more expensive (much more expensive) than fuel for that journey and by business can’t absorb that.

But sometimes it turns out to be the best option, both logistically and financially. And you get to rest on the way!

Comments are closed.