Do tyre pressures affect fuel consumption?

There are several good reasons to keep your tyres fully pumped. Unfortunately, saving massively on fuel isn't one of them

Potential Fuel Saving: up to five per cent

Essential for safety, moderately useful for consumption

A modern radial tyre with 25 per cent of the air let out of it looks like

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Using an inverter to make 240-volt power for your car

You can produce 240-volt (AC) electricity fairly easily, using a device called a static inverter.

Smaller units plug into a conventional cigarette lighter socket - suitable for charging mobile telephone, cameras, camcorders and PDAs. Larger units need to be hard-wired into the car's electrical system.

Selecting an inverter usually depends on what you want to do with it. Inverters are rated in watts (W).

 

  • 50W is good enough for basic battery recharging of phones and cameras.
  • 150W will run an average laptop computer.
  • 250W willl run a 19-inch LCD TV.
  • 600W is enough for
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What's the relationship between petrol price and oil price?

Oil prices are where manic-depression and dollar signs collide.

We should all be thanking our lucky stars that the Aussie dollar has surged against the Greenback – because it’s the only thing standing between us and paying about $1.60 a litre for petrol.

Luxuriating in this commercially insulated cocoon could be ill-advised; prices are going north some time soon. The specific question is: When? Diesel could well lead the charge, if the Chinese and other Asian economies continue to inflate. (There’s an unpleasant thought.)

Remember when the world economy was

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fuelJohn CadoganComment
Will changing my travel timing help me save fuel?

Opting out of the peak-hour grind is a great way to save fuel. Unfortunately many workers just can't swing it

Potential Fuel Saving: 50 per cent

[Extremely worthwhile; potentially difficult to achieve]

If you can avoid peak-hour traffic, sideline those ignition keys. The dreaded ‘linear car park’ between home and office is a huge threat to air quality – and 53 per cent of all passenger vehicle travel in Australia occurs in capital cities, plus another 18 per cent in

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fuelJohn CadoganComment
What's the best way to drive to save fuel?

How you drive in traffic makes a huge difference to your fuel consumption

Potential Fuel Saving: up to 40 per cent

[Extremely worthwhile; easy to achieve in practice]

This is where the calm, go-with-flow driver wins big-time, while the alpha male with rabies really is the biggest loser.

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fuelJohn CadoganComment